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机电专业英语试题二及答案

机电专业英语试题二及答案
机电专业英语试题二及答案

机电专业英语试题二及答案

Ⅰ. Translate the following words or phrases into Chinese or English.(2×10)

1. engine lathe__________________

2. _________________ 维修车间

3.point to point NC ________________________

4.____________________ 制造设备

5.automatic tool changing _________________

6.旋转加工______________________

7.regardless of __________________

8.__________________ 脆性工件

9.dislocation density _________________________

10._________________________ 晶粒生长

II. Fill in the blanks with the suitable words or phrases given below.(3×6) is heated to A wide variety of be characterized as

Forging can 1 : mass conserving, solid state of work material (metal), and mechanical primary basic process-plastic deformation. 2 forging processes are used, and Fig.12-1 (a) shows the most common of these: drop forging. The metal 3 a suitable working temperature and placed in the lower die cavity. The upper die is then lowered so

that the metal is forced to 4 . [1]Excess material is squeezed out between the die

faces at the periphery as flash, which is removed in 5 . When the term forging is used, it usually means hot forging. Cold forging has 6 . The material loss in forging processes is usually quite small.

III. Translate the Chinese parts given in the brackets into English.(4×10)

1.________________________________________(许多大型的车床配备在普通车间中通

常看不到的附件), such as automatic stops for the carriage.

2._____________________________________________(在通用车床上加工一个复杂的工件时), a great deal of time is spent changing and adjusting the several tools that are needed to complete the work.

3.Point to point control system, also called positioning, are simpler than contouring control system.Its primary purpose is ________________________ ________________________ (移动刀具或工件从一个程序控制点到另一个控制点) .

4.Geometric instructions __________________________________________

_______________(用于定义刀具和工件之间的相对位置和运动).

5.Modern machining centers have ________________ (非常有助于) improved productivity in many companies.

6.The workpiece is placed in a tank _______________________________(盛满液体介质);

a depth of at least 50 mm over the work surface is maintained to eliminate the risk of fire.

7.___________________________________________(高功率脉冲输出到工具和工件中)to produce the sparks responsible for material removal.

8.Work hardening can be ____________________________________

_______________________ (通过回复和再结晶的动态软化过程消除).

9.This low temperature treatment removes the residual stresses due to cold working ____________________________________(没有改变错位密度)is called recovery.

10.Flame cutting can be characterized as: mass reducing, solid state of work material, chemical primary basic process-_______________(燃烧).

IV. Translate the following paragraphs. (20)

The generally accepted definition for heat treating metals and metal alloys is “heating and cooling a solid metal or alloy in a way so as to obtain specific conditions and/or properties.” Heating for the sole purpose of hot working(as in forging operations) is excluded from this definition.Likewise,the types of heat treatment that are sometimes used for products such as glass or plastics are also excluded from coverage by this definition.

试题二答案

Ⅰ. Translate the following words or phrases into Chinese or English.(2×10)

1.普通车床

2.maintenance shop

3.点对点数控系统

4.processing equipment

5.自动更换刀具

6. rotary-work

7.不管,不顾

8.fragile workpiece

9.位错密度

10.grain growth

II. Fill in the blanks with the suitable words or phrases given below.(3×6+2)

1.be characterized as

2.A wide variety of

3.is heated to

4.fill the cavity

5.a later trimming process

6.several specialized names

III. Translate the Chinese parts given in the brackets into English.(4×10)

1.Many of the larger lathes come equipped with attachments not commonly found in the ordinary shop

2.When machining a complex workpiece on a general-purpose lathe

3.to move a tool or workpiece from one programmed point to another

4.its computational capabilities have been substantially increased

5.contributed significantly to

6.filled with a dielectric fluid

7.The high-power pulsed output is then applied to the tools and workpiece

8.balanced by the dynamic softing processes of recovery and recrystallization.

9.without causing a change in dislocation density

https://www.wendangku.net/doc/d812506677.html,bustion

IV. Translate the following paragraphs. (20)

普遍认同的对金属及合金热处理的定义是,以一定的方式加热和冷却固态金属或合金以达到一定的条件和/或获得某些性能。以热加工(如锻造)为目的的加热,不在此定义之列。同样地,有时用于生产诸如玻璃或塑料制品的热处理也不属于该定义的范畴。

(完整版)机电专业英语

一.单词翻译(英译汉,汉译英共20分) compound pulley 组合滑轮 screw 螺丝 worm gear 涡轮 clearance fit 间隙配合 transition fit 过渡配合 interference fit 过盈配合 ground teeth 精密齿 gear reductions 齿轮减速比aluminum 铝 brass 黄铜 bronze 青铜 cast iron 铸铁 carbon 碳钢 alloy steel 合金钢 hardened steel 硬化钢 stainless steel 不锈钢 plastic materials 塑料材料 gear teeth 齿轮 straight-toothed 直齿轮 rack and pinion 齿条和齿轮 straight bevel gears 直齿锥齿轮spiral bevel gears 弧齿锥齿轮friction 摩擦 lubrication 润滑 lubricant 润滑剂 full fluid film lubrication 全液态薄膜润滑 boundary lubrication 边界润滑elastrohydrodynamic lubrication 流体弹性动力润滑 proton 质子 neutron 中子 parallel circuit 并联电路 series circuit 串联电路 electron 电子 inductor 电感 capacitor 电容 conductor 导体 semiconductor 半导体 metal-oxide-semiconductor 金属氧化物半导体 integrated circuit 集成电路integrated circuit chip 集成电路芯片 dopant 掺杂剂 mask 掩膜 doping 掺杂 photoresist 感光胶 etch 蚀刻法 dielectric 非传导性(电介质)rung 梯级 branch 分支 instructions 指令 power rails 母线 quantity 数量 parameter 参数 ladder diagram 梯形逻辑图 ON-delay timer 通电延时定时器OFF-delay timer 断电延时定时器retentive timer 保持定时器proximity timer 接近开关electromechanical control 机电控制mobile robots 可移动机器人manipulator robots 操作机器人 self reconfigurable robots 自变形(重装)机器人 Analog-to-Digital Converter A/D模数转换器 Digital-to-Analog Converter D/A模数转换器 ASIC(Application Specific Integrated Circuit)专用采集电路 Laplace transform 拉普拉斯变换 Z-transform Z变换 valve 阀 pump 泵 motor 发动机 cavitation 气穴 hydraulic 液压的 equilibrium position 平衡位置vibration(oscillation) 振动transducer 饱和电抗器,传感器,变频器 reservoir 油箱 pump with electric motor 电力马达泵unloader and safety relief valve 减荷

(完整版)《机电工程专业英语》A卷.doc

四川理工学院成人高等教育 《机电工程专业英语》试卷( A 卷) 年级三年级 专业机电一体化 ZK931101 层次专科 号 题号一二三四五六七八总分评阅(统分)人 学 题分20 30 20 30 得 分 注意事项: 线 名 1.满分 100 分。要求卷面整洁、字迹工整、无错别字。 姓 订 生 2.考生必须将“学生姓名”和“学号”完整、准确、清楚地填写在试卷规定的地方,否则视为 学 装 此 废卷。 过 3.考生必须在签到表上签到,否则若出现遗漏,后果自负。 要 得分 评阅教师 级 不 一、选择题: 班 题 业 专 答 选择括号中提供的单词或短语,并以正确的形式填空。 (每空 2 分,共 20 分) ( send out, focus on, deny, prove, make sure, equip with, shock, accomplish, vary from, call ) ( 1) A week ago he received a notice stating his application was . ( 2) Effective teaching is the learning needs of each student in the class. ( 3) His mother when she heard about the accident. ) ( 4) He a number of e-mail messages to his friends. 班 ( 5) Position measurement in NC machines 属 can through direct or indirect methods. 直 ( ( 6) The actual programming commands needed will 点 also builder to builder. 学 ( 7) This method to be very successful. 教 (8) that the instructions for the use of this high pre are strictly observed. (9) The majority of NC/CNCmachine tools automatic too such as magazines on machining center and turrets on turning centers. (10) The movements are detected and counted by a feedback device a transducer. 得分 评阅教师 二、名词解释: 写出下列英文缩写的全称 ,并翻译成中文。 (每题 3 分,共 30 分) ( 1) PLC ( 2) CIM ( 3) AGV ( 4) FMS ( 5) ROM ( 6) CPU ( 7) CNC ( 8) CAD ( 9) GUI ( 10) JIT 得分 评阅教师 三、汉译英: 将下列术语翻译成英文。 (每题 2 分,共 20 分) ( 1) 在线编程 ( 2) 装配有(某设备) ( 3) 钻床 ( 4) 齿轮加工 ( 5) 穿孔纸带 ( 6) 切削中心 ( 7) 加工中心 ( 8) 光电开关 ( 9) 显示面板 ( 10) 超声波加工 得分 评阅教师 四、英译汉

机电工程专业英语

Unit 1 原子钟 电子或电子计时装置是由原子或分子的震荡控制的。一个计时装置必须包含或者连到一些均匀震荡的的仪器上来控制指针的移动的频率或者数字改变的频率。机械钟或者手表利用震荡平衡轮,钟摆和音叉。更高的精度或许利用原子或分子震荡,因为这种震荡频率如此高,不肯能用他们做控制时钟的直接手段.。然而,这种钟被一种高速平稳输出可以自动增加而且可以与原子系统的比较的晶体振荡器控制。这种震荡器的错误会自动改正。时间通常是由数字原子时钟或者其他的复杂的读数设备显示的。 第一个原子时钟,发明与1948年,利用氨分子的振动。一对这样的时钟之间的误差,也就是说,在指定的时间如果两者统一瞬间启动然后比较,区别通常是三千年差一秒。在1955年,第一个铯束时钟(一种利用铯原子发射精密频率的微波光谱线作为参考的设备),在英国的特丁顿国家物理实验所投放操作。美国的标准是nist f-1,他是在1999年进入服务的并且在两千万年里不会快或者慢一秒。一个喷泉原子钟,NIST F-1原子钟包含由高3英尺的垂直管的内部结构.他用激光冷却铯原子,在空气中用激光摇匀形成铯原子团。特别像一个摇匀的网球。形成喷泉效果。这允许原子比以前的任何时钟都要观察的远。 许多世界国家的标准实验室保存着原子钟,用这些时钟平均产生叫TAI的标准来维持时间。高精度的时间信号是来源于这些标准实验室通过短波无线广播站或者人造卫星向全世界传播的。这种信号被用来跟踪太空飞行器,电子导航系统和地壳的瞬间的研究等事情。这些精确的时钟使利用实验证明了一个很大的预言-爱因斯坦的相对论成为可能。原子钟的原型是用氢原子或者铍原子这样的原子可以几千年仍可以很准确。比如:美国家标准与技术研究院的研究人员已经证明过渡在一个基于能源困汞离子(汞原子丢失了一个电子)的时钟潜在着比目前时钟精确度高达1000倍。 Unit 2 制动(刹车)系统 制动(刹车)踏板或者用手杆来激活(启动)刹车(制动),对于低功率的机器或者车,操作人员通常可以提供足够的力通过一个简单的机械运动把刹车踏板或者操作杆联系到刹车的部分上。然而,大多数情况下,这种力可以通过一种精心制作的系统来增加。 空气制动系统 空气制动系统是一种早期的系统用来增加制动力,也可以叫做空气制动,它是由美国乔治西屋的制造商发明的并与1868年第一次使用在乘客火车上。现在他被广泛应用在铁路火车上。它的基本原理是利用压缩运动空气使油箱的活塞安放在车轮上的闸块式制动器。动作同时作用在火车车厢的轮子上。通过连轴器连接的车厢之间通过用结实的管子传递空气。与此同时,通过工程师控制他释放在所有的单独的闸块式制动器部位。在制动管损坏,泄露或者是刹车部位损坏,它有自动提供所有闸块式刹车设置。空气制动系统也被应用在地铁,有轨电车,公共汽车和卡车。

机电专业英语

1Thyristors should not be confused with bipolar junction transistors or field-effect transistors. 不应将晶闸管与双结型晶体管(bipolar junction transistors,BJTs)或场效应管(field-effect transistors,FETs)混淆起来. 2BJTs and FETs are both capable of performing switching operations. As a rule, these devices are not as efficient as thyristor and do not have the power-handling capability. BJTs与FETs都能够完成开关操作。按照惯例,这些器件并没有晶闸管那么有效率且不具备功率(电力)处理能力。 3Thyristors are used as power control devices, whereas transistors are primarily used in amplifying applications. 晶闸管通常用作电力控制器件,而晶体管主要用于信号放大。 4A variety of unidirectional thyristors is now being used in industrial electronic applications. One of the first to be developed was the silicon-controlled rectifier(SCR). The term thyristor was derived form the words thyratron-transistor. 工业电子应用系统目前使用了很多种单向晶闸管。可控硅整流器(silicon-controlled rectifier, SCR)就是最初开发出的三极管之一。术语晶闸管“thyristor”源自于单词“thyratron-transistor”。 5An SCR is classified as a reverse blocking triode thyristor. This means that the device has conductibility in only one direction. When its anode and cathode are reverse biased, the device will not conduct. SCR被归类为反向阻断晶闸管。这意味着该器件仅在一个方向上导通。当其阳极、负极处于反偏时,它不导通。 6The silicon-controlled switch(SCS) and the programmable unijunction transistor(PUT) are two other thyristors of this classification. 可控硅开关(silicon-controlled switch, SCS)和可编程单结晶体管(programmable unijunction transistor, PUT)是该类的另外两种晶闸管。 7The internal construction of an op-amp is quite complex and usually contains a large number of discrete components. 运算放大器的内部结构非常复杂,它通常包含大量的分离元件。 8A person working with an op-amp does not ordinarily need to be concerned with its internal construction. It is helpful, however, to have some general understanding of what the internal circuitry accomplishes. 使用运算放大器工作的人一般并不需要关心其内部结构。然而,了解其内部电路所具备功能的一般常识是很有帮助地。 9This permits the user to see how the device performs and indicates some of its limitations as a functioning unit. 这就让用户明白该器件是怎样工作的,当然也显示出其作为一个功能单元的一些局限。 10The first stage or input of an op-amp is usually a differential amplifier. This amplifier has two inputs, which are labeled V1 and V2. 运算放大器的内部结构非常复杂,它通常包含大量的分离元件。运算放大器的输入或者其第一级通常是一个差分放大器。该放大器有两个分别标为V1、V2的输入端。 11It provides high gain of the signal difference supplied to the two inputs and low gain for common signals applied to both inputs simultaneously. 它对同时施加在两个输入端的差分、共模信号分别提供高、低增益。

机电专业英语翻译

P67 传动轴是用于支撑滑轮和轮子使它们能够完成基本转动功能的机械 零件。传动轴有各种各样的形状和应用,它是由各种长度的金属棒料制成并且其表面被加工成一定的尺寸。由于转轴承受载荷并传送动力,因此承受正在工作的机器零件的应力和应变。为了使结构和操作安全经济,已经形成了标准化的程序来确定材料的特性和尺寸所需 实心轴传动轴的正常形式是实心棒。实心轴在工业上可以从圆的棒材获得,最大直径可达15cm,它是由热轧和冷拉制成或用直径余量为6mm或更小的棒料机械加工而成。对于更大尺寸的轴,需要专门的轧制程序,而特大的轴是由钢锭锻造成合适的形状。尤其是实心轴,轴被做成台阶状以使中间部分承受更大的强度,而在其端部轴承处直径最小。台阶允许肩部在转子安装时将压在轴上的各种部件定位。 空心轴为了减少重量,实心传动轴被镗孔或钻孔或使用空心管和管材。空心轴还允许内部支撑或让其他传动轴穿过其内部工作。在喷气式飞机发动机内位于空气压缩器和燃气涡轮中间的主轴是空心的,允许有一个需要最小空间和重量的内部减速轴。一个具有同样扭转强度的空心轴比实心轴的直径大,但重量轻。由铸锭制造的大轴的轴心通常被镗出孔以 . 消除缺陷,而且也允许目测检查铸造裂纹。

P70 联轴器是用来把相邻的两个轴端连接起来的装置,在机械结构中,联轴器被用来实现相邻的转轴之间的半永久性连接。在机器的正常使用期间,这种连接一般不必拆开,这种意义上,可以说联轴器的连接是永久性的,但在紧急情况下,或者在更换已磨损的零件时,可以先把联轴器拆开,然后再联接上。 在把属于不同的设备(例如一个电动机和一个变速箱)的轴联接起来的时候,需要把这些轴精确的对准是比较困难的,此时可以采用弹性联轴器,这种联轴器联接轴的方式可以把由于被联接的轴之间的轴线的不重合所造成的有害影响减少到最低程度)。弹性联轴器也允许被联接的轴在他们各自的载荷系统作用下产生偏斜或在轴线方向自由移动(浮动)而不互相干扰。弹性联轴器也可以用来减轻从一根轴传到另一根轴上的冲击载荷和震动的强度。 电机中的转子有转动惯量,当电机启动时需要一个扭矩带动其运转到一定的速度。如果电动机的轴与具有很大转动惯量的负载刚性地联接在一起,当合上开关使电机突然启动时,有可能在电动机没有来得及产生足够的的扭矩,使电动机的轴达到应有的转速前,电动机内的线圈就会因为过大的电流而被烧毁。电机和负载轴之间的离合器会限制电机的启动转矩只到加速转子和离合器部件的所需数值。

机电专业英语词汇

机电专业英语词汇

abnormal 异常abort 中断,停止absent 不在的,缺少的acceleration 加速,加速度access vt. 存取action 动作 actuator n.操作(执行)机构,执行器address ['dres]地址adjust 调整,校正adjustable wrench 活 扳手 adjustable 可调整的adjusting screw 调整螺钉 adjustment 调节、调节装置 air compressor 空压机、压缩机 air exhaust fan 排气扇、排气,抽完alarm ['la m] 报警 align 定位,对准,调整 alternating current AC 交流电轮流,交替 ambient temp 环境温度 ambient 周围的,环境的 ammeter n. 电流表,安培计 amp n. 安培ampere n. 安培amplifier n. 放大器,扩音器 analog input 模拟量输入 analog output 模拟量输出 analog signal 模拟信

号 analog 模拟analog-to-digital A/D 模数转换angle valve 角伐angle 角度application program 应用程序请求,应用arc [a:k] 电弧,弧光area 面积,区域arrester [ 避雷器assemble line 装配线,生产线assemble 安装,组装asynchronous motor 异步马达atomizing 雾化attention 注意auto reclose 自动重合闸autoformer 自耦变压器automatic AUTO 自动automatic voltage regulator 自动调压器auxiliary AUX 辅助的avoid 避免,回避avometer 万用表,安伏欧表计axis 轴,轴线back pressure 背压back up 支持,备用back wash 反冲洗baffle 隔板bag filter 除尘布袋balance 平衡,称,天平ball 球bar 巴,条杆base 基础、根据battery n. 电池

机电专业英语试题及答案

《机电专业英语》考试题 一.翻译词汇mechatronic 机电一体化(技术)sensor传感器 actuator执行元件,执行结构 Feedback反馈 deviation偏差 hydraulic液压的 machine tool机床 几何建模geometric modeling job-lot amount单批量 maintenance维护 pallet随行夹具 robot机器人 钻床,钻头drill Lathe车床 mill 铣床 shaper牛头刨床 planer龙门刨床 grinder磨床 tap攻丝 pulley滑轮

shaft轴 bore 镗削 screw螺杆 tolerance公差 torque转矩 nut螺母 spring弹簧 键key bearing轴承 coupling联结器 clutch离合器 diode二极管 transistor三极管 transistors 晶体管 integrated circuit 集成电路 chip 芯片 capacitor 电容器 resistor 电阻 digital 数字(式)的 lever杠杆 Servomechanism伺服机构 closed-loop闭环

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