机械毕业设计英文外文翻译519选择榨汁机的诚实指南.docx
机械毕业设计英文外文翻译519选择榨汁机的诚实指南
收藏
资源目录
压缩包内文档预览：(预览前20页/共27页)
编号：550424
类型：共享资源
大小：36.52KB
格式：ZIP
上传时间：2015-12-06
上传人：QQ28****1120
认证信息
个人认证
孙**（实名认证）
辽宁
IP属地：辽宁
6
积分
- 关 键 词：
-
机械毕业设计英文翻译
- 资源描述：
-
机械毕业设计英文外文翻译519选择榨汁机的诚实指南,机械毕业设计英文翻译
- 内容简介：
-
The Honest Guide to Choosing a Juicer In the 1930s a chap called Dr Norman Walker invented a juicer which firstly grated and then cut produce. The resulting mass was then to be put into a linen bag and placed under a hydraulic press, directing juice down a spout. (Dr Walker lived to 108 years of age - he died in a surfing accident). You can still purchase this 2-stage Norwalk machine for around $2000, which is a very prohibitive price indeed. And most of the juicers you will find on sale havent evolved much since then, which brings us to.Centrifugal juicers. Centrifugal juicers work by using a flat cutting blade on the bottom of a rapidly spinning strainer. Cut produce is flung out over the sides of the strainer. Due to the centrifugal force, juice then passes through tiny holes in the strainer. Features intrinsic to this design include: The strainers are HUGE and a pain to clean The cutting blades are tricky to clean and some are particularly dangerous to handle The process incorporates mass oxidization and therefore a dying and brown juice There is a lot of unpleasant froth Leafy green vegetables are impossible, so no herbs and no wheatgrass Pulp builds up in the strainer and efficiency falls rapidly The centrifugal force pushes a lot of pulp through the strainer, ntsresulting in a lot of pulp in the juice These juicers can seriously damage your hearing, and wont be popular in a terraced house or flat, or if anyone is still in bed Ultimately, the technology inside a centrifugal juicer is not unlike that of a tree cutter. Theyre spinning at up to10000rpm. The resulting frictional heat is not good for your juice. Neither is 10000rpm an easy task for a motor when under constant resistance. The amount you can spend on a centrifugal juicer varies from 30 to over 100 - so what are you paying for? Well, in truth, mostly brand name and aesthetic design. While the cheapest of machines are certainly week hearted and not going to last you long, experience and feedback tells us that more expensive machines dont necessarily last any longer. In fact, if everyone who bought a juicer used their machine every day we think nearly every machine on the market would be withdrawn because with daily usage virtually all machines would fail within their first year, let alone within warranty. This guide has been written as a result of the cumulative experience of several people, spanning over 4 years and many many juices. In this guide you will: discover clearly the best type of juicer for you pinpoint the best machine in each category be saved from the confusion of conflicting promotional material benefit from unique comparison charts and photos nts gain links to background information and in dependant reviews And thats a brave statement for us to make but far braver is the warranty provided with juicers. Most people we speak to that have burnt out previous machines never even took it back. We live in a throw away society sadly, but its great for manufacturers. Another fact of society is how many of us shelve new products. In a recent survey juicers were found to be the most likely new item to be left in the cupboard, second only to the George Foreman style grills. We believe this is because of the above drawbacks of this style of juicer - as the high street centrifugal is by far the most purchased type of juicer in the UK. Centrifugal juicers that handle whole produce. WOW! what a feature, whole apples, whole heads of celery. Having said that, impatience isnt the highest virtue. One health food author tells us its great being able to put in a whole head of celery, but the motor keeps burning out and I have to take it back to the shop. Ultimately, this feature is one of convenience, but the process still destroys the juice, and you still have to clean up after every glass produced as the strainer clog seven more rapidly. The juicers themselves have had no technical redesign other than a widening of their feeding chute, so there has been no consideration of increased motor resistance. Also, a wide feeding chute is extremely dangerous an adult could loose their whole arm in there. Also, anything ntsthat doesnt fill the chute rattles all over the place, like a simple carrot. Generally there is immense volumes of foam and the juicers dump a lot of pulp into the juice which then requires straining. How many juicers do you want to buy this year? One last word on whole fruit juicing: animals that live inside fruit. Think about it, even if your juicer can take whole apples, maybe its worth quartering each apple first. worm juice anyone? Centrifugal juicers with pulp ejection. A relatively small market place that holds a few domestic machines, and mostly commercial machines used by juice bars. Juice bars need juice QUICK (which is why they have to sacrifice quality and use the centrifugal process) and they cant afford to continually disassemble their juicer to clean it. In a centrifugal juicer that has pulp ejection, the sides of the straining basket are cleverly slanted, the air flow sending the pulp produced automatically into a collection basket without the need for cleaning. The process IS NOT full-proof by a long way, and offers no inherent improvement on all the flaws of centrifugal juicing already mentioned. Please be aware that stringy, fibrous produce and wheatgrass is still not a success in this type of juicer. If youre looking to incorporate these into your juice read on.A revolution occurred in the 1950s when Plastaket invented the Champion, the worlds first masticating juicer. Masticate means to chew, and as the Champion is the only juicer with teeth we feel its the only masticating juicer available. Many other web sites will ntsclass gear juicers as masticators. We have put these into their own category below. The Champion juicer gives a greater yield then centrifugal juicers and the degradation isnt nearly as severe. But its cutter is running at 1425rpm - and that can be a problem. Leafy veg is still a NO - only now it gets caught in the teeth! If you juice slowly (or the teeth are clogged with plant fibers) you get warm foamy juice as the cutter is spinning rapidly against the produce that hasnt yet cleared the juicing chamber. When the Champion arrived on the scene over 50 years ago, Siegfried Gursche, author of Healing with Herbal Juices, described as a tragedy the extremely high speed of the juicer which causes lots of friction which heats and sometimes even steams the juice. Some nutrients, especially all live enzymes, are destroyed by heat. Where the Champion excels (in terms of speed of throughput and yield) is with root vegetables. If youre planning to process A LOT of carrots, then the Champion would be a consideration for you (i.e. the Gerson Diet). Although, in our opinion youd still be better off with a gear juicer, and you should make green juices your main stay. To read more about why the Champion should be nominated for retirement, click here. Now lets take a jump into the 1990s. Suddenly an innovation occurred in juicing. Low speed, gear juicersGear juicers operate anywhere between 70 and 120 r/min. Thus, in a gear juicer: nts Produce is crushed - No cutting or spinning Enzymes are preserved AMAZING green juices become possible Your juice is cold, as it should be You lift a glass of living juice every time They are the easiest of all juicers to clean (dont let anyone lie to you and claim that any juicer mentioned previously in this guide is easy to clean theyre not). As a visual representation of the differences we have prepared two glasses of apples juice - one prepared in a single gear juicer, the other in a centrifugal juicer. The rapid oxidization of apple juice makes this a good test for the colour and therefore vitality of the juice. Other produce would show similar results for the centrifugal produced juice, but typically the single gear prepared juice would exhibit less or no foam. E.g. orange juice is entirely foam in a centrifugal juicer and zero foam in a single gear juicer. Many people have said or written that you need to drink juice produced in a centrifugal juicer straight after producing it. Usually it is explained that as the juice deteriorates you can benefit from the juice by consuming it straight away. PLEASE stop and think. If a process causes destruction, removing it from your sights quickly does not alter the destruction. If you want to juice for health you must produce the juice yourself in a low speed gear juicer. This is the only way ntsto gain benefit from the abundance of nutrition available in fresh fruits any vegetables when their fibre is safely separated. No other Apple juice extracted with a Single Gear Juicer Has a healthy, even color, showing that its full of enzymes and nutrients 20% more juice yield Less foam Apple juice extracted with a Centrifugal Juicer Has oxidized and turned clear brown -only water content with no enzymes andnutrients Poor juice yield A lot of foam domestic or commercial juice preparation will give you the benefits of living enzymes,vitamins, minerals and other phytonutrients. So now that were totally convinced that its only worth drinking fresh juice if prepared using a gear juicers, weare left with one question - single gear or twin gear?Single gear juicers A single gear juicer has a single rotating screw or auger, with an ever narrowing thread along which produce follows until crushed inside a screen which allows juice through and pulp to be ejected at the tip. This process is very similar to the worm gear of a meat grinder. The auger is divided into a two phase process of first crushing and then wringing-out the produce against the wall of a conical filter screen. ntsSingle gear juicing offers you top quality juice with ultimate friendliness of use. You wont ever be put off using a single gear juicer, it will forever remain a joy. In the UK the original Oscar 502 has just been made available again as the Oscar Living Juicer, a machine youll see in juice bars like Planet Organic. There are a hoard of other single gear juicers available now, including the LE quip Visor, Solo Star and Live Please take note that despite superiority claims of the enzyme content produced by different gears juicers, there is NO evidence or test ever been done to identify if one machine is more successful than another in this area. It seems that all promotional material for this type of juicer, including unedited web copy, claims superiority. We would advise not basing your purchase around such statements. Additionally there is no evidence that slower is better (relative to this category, i.e. 70rpm is not better than 120rpm). TRUE, slow speed has immense benefits over thousands of revs per minute, but the small differences in speed between juicers in this category are not cause for you to choose the slowest. Single gear juicing was invented at the beginning of the nineties with the introduction of the Oscar 502, designed and Manufactured by a Korean company named Dong Ah which was founded by two business partners in 1988. One of the two businessmen betrayed the other, set up a nearby manufacturing facility, started a new company called Dong A Oscar (cheeky, hey?) and within a short time had produced the ntsMatstone juicer - a copy of the Oscar design. Outside of Korea the machine was branded the Samson, and globally, Samson agents touted their machine as the new model Oscar. They cut a number of corners to make their Matstone juicers more affordable and pushed heavily with their marketing. In one country, an ex-employee of the Oscar distributor stole $75,000 and the customer database before setting himself up as the Samson distributor. In the UK, where there was no resident Oscar distributorship, the Oscar was long forgotten, many people believing to today that their Samson/Matstone machine is the new Oscar. The story nearly finished with Dong A Oscar falling to bankruptcy on 26th September 2005.Enzyme juicers. These have not proved as efficient or reliable as the Oscar brand. We recommend looking closely at warranty durations, as the Oscar Living Juicer offers 12 years, and only one other machine beats that. Dual stage single auger juicers The latest innovation in single gear juicers is a 3 phase extraction auger working inside a dual stage juicing screen. Upon the initial crushing of the produce, any released juice is directed through the first stage of the juicing screen into the juice collecting bowl. The crushed produce minus much of its juice then continues its way through the machine, where there is a finer holed screen to obtain not only a higher yield, but a near pulp free juice. The picture below compares a dual stage juicing screen (top) with a single stage juicing screen (bottom). Clicking on the picture ntswill show alarger picture. This process is claimed to obtain up to 20% more juice than ordinary single gear juicers and mostly yields like a twin gear machine. A test with carrots yielded 26% more juice! With other single auger juicers, the juice is only produced in the second stage, requiring larger holes in the juicing screen. Consequently a sieve is provided with other single gear juicers covering the juice collecting bowl to catch pulp. As juice is allowed to exit at the first stage this type of juicer doesnt suffer from a number of problems that affect virtually all other juicers: leaks, especially into the locking clip and motor housing (this causes long term problems with the gearbox as fruit acids reach the lubricating grease within the gearbox causing extra noise and eventually a breakage. additionally locking clips / face plates of juicers are tricky to clean and add to your time). poor performance with soft fruits (soft fruits hold more juice extractable at the first stage. When trying to pass this juice onto the second stage of ordinary single gear juicers, typically nothing happens at all and produce remains stationary in the juicing drum with the juice and all the auger does is stir it).There are only two dual stage single gear juicers available on the market, the Solo Star II and the Oscar 900 VitalMax. Youll note that both brands have been worn on earlier models. ntsWe prefer the Oscar VitalMax for a number reasons, including a lighter/sleeker design, as well as being easier to use and clean. Also, both stages of the Oscar juicing screen are stainless steel where as the Solo Star II has a plastic first stage. Lastly, the Oscar VitalMax is the only juicer to hold a 20 year motor warranty. Now that is a brave warranty to implement. Oscar assure us that their machine has been tested beyond 10,000 hours of use. They insist we juice daily, and insist that they use the finest motor and components in the world. Perhaps some tell-tale signs of this quality reside in this machines performance, and quietness, as the VitalMax is most definitely the quietest machine weve used. Since Oscar have been in business since 1988 it is safe to trust their warranty offering too. Single gear juicer with NO juicing screen. The Oscar VitalMax is absolutely the most reliable, best performing, quickest to clean, easiest to assemble and use appliance of its type AND it has the least number of parts - just 4 plus the hopper! There is one single product in this category, the Live Enzyme juicer (which is an electric version of the inexpensive manual juicer known as the Easy Health). Both the manual and electric version were designed for use with greens, particularly wheatgrass exclusively. Due to the very high stringy fibre content of these foods they dont create pulpy juices, and thus a juicing screen is not necessary. However, the absence of a juicing screen on these machines is coupled with claims of juicing all produce and ntsheadlining of the time youll save not cleaning the screen. Proceed with caution. You will need to sieve, and softer produce is problematic. Ok if you like pulpy juice, but when you want just pure juice (without the pulp), the pulp quickly collects on the sieve clogging it up. If the sieve was integrated into the juicing drum then separated pulp would be deposited away from he juice, but with a sieve resting on the juice jug you have to empty it frequently and waste a lot of juice in doing so. This is very messy, especially with soft produce, including apples, and tomatoes will lead you to give up hope. Finally, two augers are provided with this juicer for different produce another unique feature. But presuming you require both, at some point you may wish to change the parts to juice the next item in your recipe. Messyagain. Below is a chart of the power (watts) of the 5 most popular single gear juicers. This is an important comparison, because each one of these juicers has a 38mm feeding chute, and thus has the same task to endure. Ultimately, the higher the power, the lower the motor wear of a single juicing task. The power of a machine is exhibited in the juicing performance too, but if you compare this with the warranty chart above you can see exactly what you are getting. People have always thought of the higher price tag equipment as too expensive. but what they dont realize. how many cars do you want to buy in the next 10 years? How many vacuum cleaners do you want to own? How many times do you ntswant to buy a stereo? Or do you want to buy something and be partially dissatisfied with it because every time you use it, it breaks on you? Or do you want to do it once and do it right? After all, you know, you get what you paid for in the sense, not that you pay less money because in the long run you can pay more money. One of the things Ive always thought is that I hate buying junk. Because I end up buying it again. How many of you have bought many of the same product because you never bought a good one? The thing about the Oscar is - it
- 温馨提示:
1: 本站所有资源如无特殊说明，都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
2: 本站的文档不包含任何第三方提供的附件图纸等，如果需要附件，请联系上传者。文件的所有权益归上传用户所有。
3.本站RAR压缩包中若带图纸，网页内容里面会有图纸预览，若没有图纸预览就没有图纸。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 人人文库网仅提供信息存储空间，仅对用户上传内容的表现方式做保护处理，对用户上传分享的文档内容本身不做任何修改或编辑，并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容，请与我们联系，我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
人人文库网所有资源均是用户自行上传分享，仅供网友学习交流，未经上传用户书面授权，请勿作他用。
|
2:不支持迅雷下载,请使用浏览器下载
3:不支持QQ浏览器下载,请用其他浏览器
4:下载后的文档和图纸-无水印
5:文档经过压缩，下载后原文更清晰
|
川公网安备: 51019002004831号