机械类专业英语应用Unit-8课件

1、Unit 8 Engineering Materials and Heat treatment难句释义Round bars commonly stocked range from 3 to 1,100 mm in diameter and from 300 to 2, 800 mm in length.“stock”意为“库存的”；注意尺寸的表示方法，即“in diameter”表示“直径上”，“in length”表示“长度上”。全句译为：通常库存的圆形棒料直径介于3到1100mm，长度介于300到2800mm。难句释义Rectangular bars range from 13 by 10

2、0 by 400 mm long to 600 by 750mm by 4.5m long.注意尺寸的表示方法，“by”表示“乘”。全句可译为：矩形棒料的截面尺寸介于13mm乘100mm到600mm乘750mm之间，长度介于400mm到4.5mm之间。难句释义This is a case-hardening procedure in which carbon is added to steel from the surface inward by one of the following methods: pack method, gas method, or liquid-salt meth

3、od.主句为“This is a case-hardening procedure”，后面接一个定语从句做状语，“by”后接方式状语。全句译为：这是一个表面硬化工艺，把碳从钢的表面加入向内部渗透达到硬化效果。渗碳方法包括：固体法、气体法和盐浴法。words and expressionsferrous/nonferrous metal 黑色金属/有色金属impurity impjurti n. 污点; 掺杂, 杂质nonmetallic nnmitlik adj.& n. 非金属的;非金属物质natural rubber 天然橡胶ceramics sirmiks n. 制陶术; 陶瓷semic

4、onductor semikndkt(r) n. 半导体composite material复合材料cast iron铸铁words and expressionsheat treatment热处理plain carbon steel普通碳钢silicon silikn n. 硅; 硅元素sulphur slf(r) n. & v. 硫磺; 硫磺色;使硫化phosphorus fsfrs n. 磷; 磷光体manganese mgni:z n. 锰nickel nikl n. & vt.镍; 镀镍于chromium krumim n.铬words and expressionsmolybden

5、um mlibdnm n. 钼vanadium vneidim n. 钒, 铅矿tungsten tstn n.钨hardness h:dns n. 坚硬; 硬度; 困难ductility dktiliti n. 韧性; 展延性, 顺从spring spri n.& vi.& vt.春季; 泉水; 弹簧; 跳跃;突然出现die dai n.钢型, 硬模; 骰子metallurgist mtldist n.冶金家, 冶金学者words and expressionstoughness tfns n. 韧性; 坚韧; 刚性brittleness britlns n.脆性, 脆度; 脆弱性roll

6、rul vt. & vi. & n.滚动; 辗; 转动; 翻滚impact resistance抗冲击强度detrimental detrimentl adj. & n.有害的; 不利的;（或物）有害的人hot working 热加工resulphurize ri:slfjuraiz v.再硫化, 再用硫处理undesirable ndizairbl adj. & n.不良的; 不合需要的; 不良分子words and expressionsdissolve dizlv vt. &vi.使溶解; 使液化; 消除;溶解; 分解yield point屈服点susceptible sseptbl a

7、dj.易受影响的; 易受感染的warp w:p n. & vt.& vi.弯曲; 弄弯, 变歪; 扭曲, 曲解scale skeil n. & vt. &vi.规模; 比例; 测量; 生水垢; 氧化corrosion resistance抗腐蚀强度wear resistance耐磨强度elastic limit弹性极限words and expressionsultimate strength极限强度tool-and-die steel模具工具钢chisel tizl n.& vt.& vi.凿子, 錾子; 凿, 雕screwdriver skru:draiv(r) n.螺丝刀; 改锥cold

8、-finished steel 冷加工精整钢surface finish表面光洁度drill Rod钻杆grinding graindi adj. & n. 磨的, 磨擦的; 磨削words and expressionspolish pli v.& n.磨光; 润色; 抛光hexagonal heksnl adj.六方; 六角形的, 六边形的white iron白口铸铁gray iron灰口铸铁malleable iron mli:bl ain 展性铸铁; 可锻铸铁plumbing plmi n.水管装置;管道工程nodular iron球状石墨铸铁compressive strength抗

9、压强度words and expressionspolymer plim(r) n.多聚物; 聚合物elastomer ilstm(r) n.弹性体,人造橡胶resin rezin n. & vt.树脂; 合成树脂; 松香;用树脂处理embed imbed vt.&vi. 把嵌入; 栽种laminated lmineitid adj.由薄片叠成的thermosetting :museti adj.热固; 热硬化性的thermoplastic :muplstik adj.& n.热塑性的; 热塑性塑料cure kju(r) vi.&vt.加工处理words and expressionsirre

10、versible iriv:sbl adj.不可逆的; 不能翻转的cross-linking交联; 交叉连接exotherm eksu:m n.放热曲线; 放热cavity kvti n.腔, 洞thermal aging热力老化degradation degrdein n.恶化; 降解; 老化spectrum spektrm n.光谱; 波谱; 范围; 系列synthetic sinetik adj. & n.合成的; 人造的; 合成物; 合成纤维words and expressionsgraphite grfait n.石墨, 黑铅charcoalt:kul n.木炭coke kuk n

11、.焦炭, 焦煤amorphous m:fs adj.无组织的; 非结晶的specific electrical resistance比电阻electrolytic ilektrlitik adj.电解质; 电解的crucible kru:sibl n.坩锅stock stk n. & adj.& vt. 库存,备料;股票; 常备的; 提供货物words and expressionselectrical insulator电绝缘体transparency trnsprnsi n.透明度; 透明; 透明性; 透明的东西germanium d:meinim n.锗gallium arsenide

12、lim :snaid 砷化镓transistor trnzist(r) n.晶体管; 晶体管收音机diode daiud n.二极管blend blend vt.& vi.& n.混合; 调和; 协调; 混合物; 混合色plywood plaiwud n. 胶合板, 合板, 夹板words and expressionsshatter t(r) vt.& vi.& n.使破碎, 使碎裂; 粉碎; 碎片biological baildikl adj.& n.生物的; 生物学的; 生物制品optical ptikl adj.光学的; 视觉的; 眼睛的copper kp(r) n. & adj. &

13、 vt. 铜; 铜币; 铜制的;镀铜space shuttle航天飞机booster rocket助推火箭silica silik n.硅石, 二氧化硅; 硅氧hydroxyapatite haidrksiptait n.羟磷灰石words and expressionscardiovascular k:diuvskjl(r) adj.心血管的cardiovascular stent心血管支架orthodontic brace 正畸支具lead zirconium titanate钛锆酸铅resonance reznns n. 共振; 共鸣; 反响superconductor su:pkndk

14、t(r) n.超导体dielectric daiilektrik n. & adj.电介质, 绝缘体; 非传导性的capacitor kpsit(r) n. 电容器, 电容words and expressionsuranium dioxide jureinjm daiksaid 二氧化铀plutonium plu:tunim n.钚fuel cell燃料电池catalyst substrate催化剂载体deposit dipzit n. & vt. & vi.存款; 沉淀物; 寄存; 沉淀ferrite ferait n.铁氧体; 铁酸盐, 铁素体inductor indkt n.感应器;

15、诱体; 感应体transformertrnsf:m(r) n.变压器; 改革者words and expressionsyttrium aluminum garnet itrim lu:mnm :nit 钇铝柘榴石photovoltaic futuvlteiik adj.光电池的liquid crystal display(LCD)液晶显示humidity hju:midti n.湿度; 潮湿passively psivli adv.被动地, 顺从地shape-memory alloy形状记忆合金gas grill瓦斯烧烤炉magnetorheological mnithildikl 磁流变w

16、ords and expressionssuspension system悬挂系统, 悬架装置photochromic futkrumik adj.光致变色; 光色; 对光反应变色的automatic dimming mirror 自动调光镜torsional strength抗扭强度shear strength 切变强度applied load 外部载荷stress stres n. & vt. 压力; 应力; 给加压力strain strein n.应变words and expressionselasticity i:lstisti n.弹性; 弹力; 灵活性; 伸缩性modulus of elasticity弹性模量bending strength抗弯强度deflect diflekt vt.& vi.使歪斜; 使弯曲; 偏转, 偏离alternating stress交变应力back and forth来回地, 往复地indentation indentein n.缺口; 凹进; 缩格; 凹口indenter indent n.压头words and expressionscryogenic kraidenik adj.低温学的hardening h:dni n.淬水; 硬化temper tempri n.回火a