电气工程及其自动化-自动化-专业英语重点-考试题

四川理工的学弟学妹们 特别是自四川理工的学弟学妹们 特别是自 电学院的兄弟伙们 专业英语难过电学院的兄弟伙们 专业英语难过 啊 是否需要这个呢 啊 是否需要这个呢 我的淘宝店铺 信诚悦购我的淘宝店铺 信诚悦购 包你包你 80 分分 电气自动化 自动化专业英语课堂电气自动化 自动化专业英语课堂 笔记笔记 1 短语互译 短语互译 10 个 每个个 每个 2 分 分 共共 20 分 分 1 DC AC direct alternating current 直流 交流 2 a good rule of thumb 根据经验 3 step up step down transformer 升 压 降压变压器 autotransformer 自 耦变压器 4 gate turn off thyristor ai rist 门 极可关断晶闸管 5 silicon controlled rectifier 可控硅 整流器 6 forward voltage drop 正向压降 7 reverse breakdown voltage 反向 击穿电压 8 reverse leakage current 反向漏 电流 9 peak reverse voltage 反向峰值 电压 10 forced commutation 强制换流 11 three phase ac squirrel cage induction motor 三相交流鼠笼式感 应电机 12 AM FM amplitude frequency modulation 调幅 调频 13 active passive filter 有源 无源 滤波器 14 bistable circuit 双稳电路 15 flip flop 触发器 16 emf electromotive i lektr u m utiv force 电动势 17 magnetic flux 磁通 18 magnetizing current 磁化电流 励磁电流 19 general purpose relay 通用继 电器 20 solid state relay 固态继电器 21 time constant 时间常数 22 ADC analog to digital conversion 模数转换器 二 汉译英 二 汉译英 5 6 个 共个 共 30 分 分 2 个课外 个课外 1 通过互联网进行商业交易 其 便利性和速度是推动电子商品快速 发展的主要因素 The ease and speed with which business transactions can be carried out over the web has been a key force in rapid growth of electrical commerce 2 用户互动 包括在线客户服务 和在线调查 提供了新的交流渠道 这在以前是不可能也是非常低效的 Customers interactions including online customer services and online survey provides a new channel of communications which were not previously available and very inefficient 3 并绕式直流电动机的调速性能 很好 当负载增加时 由于电枢上 电压降的增加 其转速会稍微降低 The DC shunt wound motor has a good speed regulation The speed will decrease slightly when the load increase due to the increase in the voltage drop across the armature 4 用户用于在建筑内传输电能的 配电系统类型取决于各自的安装要 求 居民住宅通常使用最简单的类 型 The type of distribution system that the consumer uses to transmit power within building depends on the requirements of particular installation residential buildings generally use the simplest one 5 控制系统中控制器参数固定时 其性能将在一定程度上总是取决于 被控设备或系统的参数 The performance of a control system having a controller with fixed parameters will always depend to some extent on parameters of the equipment or system being controlled 6 新设备替代老设备将会使产量 大大增加 The substitution of new equipment to the old result in increase in production 7 无论何时 若某元件上电流参 考方向与电压参考方向相同时 在 任何涉及电压和电流的公式中取正 号 Whenever the reference direction for the circuit in an element is the direction of the reference voltage drop across the element use a position sign in any impression relates to the voltage to the current 8 运算放大器最初是作为模拟计 算机的一个基本构成算元出现的 由于它被用数学运算 所以被称为 运算放大器 The operational amplifier circuit existed initially came into existence firstly as a basic building block of analog computers It was referred as operational because it was used to complement mathematical operations 9 电感是在一个磁性或非磁性材 料的磁芯上绕制一卷线圈构成 An inductor is composed of a coil of wires wounded around a core whose material maybe magnetic or nonmagnetic 10 变压器由两个线圈恰当安放而 成的 一个线圈所产生的变化磁通 将连接至另一个线圈 A transformer is constructed of two coils placed so that charging flux developed by one will link the other 3 英译汉 英译汉 5 6 个 共个 共 30 分 分 1 个个 课外 课外 1 Electrical personnel use many different types of measuring instruments Some jobs require very accurate measurements while other jobs need only rough estimates Some instruments are used solely to determine whether or not a circuit is complete 电子技术人员使用许多不同类型的 测量仪器 一些工作需要精确的测 量而另一些工作只需粗略估计 有 些仪器仅仅被用来确定确定电路是 否完整 2 The importance of never allowing the actual value to exceed the maximum value indicated on the meter can not be overemphasized 不允许被测的实际数值超过仪表最 大允许值的要求再强调也不过分 3 Since the heat sinks for both stud mounted and hockey puck devices can also carry the electric current they must be electrically isolated from their mechanical mountings 由于栓接式和冰球式器件的散热器 都能传递电流 它们必须与机械托 电气绝缘 4 If the entire system is good every acoustic variation of the air will be recorded on the disk and when the record is played back through a similar system and the signal reradiated as sound energy by a loudspeaker the resulting sound should faithfully reproduce the original music 如果整个系统正常 每一次声波振 动都会记录在圆盘上 并且当该记 录通过类似的系统重放 信号以声 能的形式从扬声器辐射出来 所产 生的声音能如实地重现原始音乐 5 Information can be communicate in digital from if the message is capable of being defined by a series of yes no statements There can be only two states of each variable used in conveying the information 如果信息能被一系列的 YES NO 所 定义 信息就能以数字形式确定 每个变量只可能有两种状态在传送 信息方面使用 6 Most early discoveries related to electrical machinery operation dealt with direct current systems Alternating current AC power generation and distribution became widespread a short time later 大多数早期的发明都与处理直流电 系统的电机操作有关 交流电 AC 发电机和传输后来才变得广 泛 7 Some starters control a motor by being connected directly across the power input lines Other starters reduce the level of input voltage that is applied to the motor when it is started so as to reduce the value of the starting current 一些起动器通过直接连接电源线的 方式控制电机 另一些起动器降低 起动时施加到电机上的电压水平 从而降低了起动电流 8 For example piezoelectric accelerometer with built in microelectronic integrated circuitry are marketed as piezoelectric velocity transducers 例如 带有内嵌的微电子积分电 路的压电式加速度计可以作为压电 式速度传感器上市销售 9 We might question the need for separate transducers to measure the four kinematic variables displacement velocity acceleration and jerk because any one variable is related to any other through simple integration or differentiation 我们或许会质疑是否需要单独的传 感器去测量这四个运动变量 位移 速度