机械工程专业英语第二版必考翻译(完整版)(2)

control knobs installed. This is basically just a robot machinist. You use a rotating cutting tool to cut away all the metal that isn’t your crank. 3D metal etch-a-sketch, with the computer interpolating, so the circles come out to be pretty smooth. (CNC Machining) （P9）

将数控系统装入一个非常标准的机床，它在控制手柄上有位置感应和马达。这基本上是一个机械师。你能使用一个旋转切削刀具切掉不是你设计的所有金属。具有计算内插的三维金属蚀刻成型可以使得圆被加工得更光滑。

8. They (CNC machine) are complicated machines, full of servomechanisms, and measuring technology that can measure to 0.005mm (0.0001”) while covered in oil. A CNC machine has a minimum of 6 motors (including some to change tools, and one or more to pump oil and coolant various places). This translates to running costs that may be well over $1/minute. (The computer is not a significant part of the cost any more.) (CNC Machining) （P10）

数控机床是复杂的机器，具有伺服机构和检测技术，它能在覆盖油膜状态下检测到0.005mm。数控机床至少有 6个马达（包括一些用来换刀具，一个或多个用来泵油和冷却液的各地方）。这些化成运行成本可能大大超过1美元/分钟。（电脑不再是成本的一个重要部分.）

9.Systems that can assess if the car is behaving safely can be used to warn drivers that their behavior is unsafe.In more extreme cases,the systems could override the driver and cause the car to stop or slow down.While this would on doubt save lives,it may provide a problem for the makers of films that include car chase---some of the impact may be lost when we live in a word where our cars simply refuse to do anything unsafe.

10.Another feature of the work of Dr.Ljubo Vlacic’s team is to have the machines communicate with each other.Since messages can goat the speed of light,it is possible for there to be an exchange of information on the intentions of several machines approaching an intersection.With this knowledge it should be possible to ensure that traffic flows far more smoothly.

11. Factory assembly line machinery is activated and monitored by a single PLC, where in the past hundreds of timers and relays would have been required to do the task. The machine or system user rarely, if ever, interacts directly with the PLCs program. When it is necessary to either edit or create the PLC program, a personal computer is usually (but not always) connected to it. (What is aPLC?)

用一个 PLC 就能操纵和监控工厂的装配线机械，过去完成同样的工作需要成千的定时器和继电器。机器或系统用户很少，如果有的话，直接与 PLC 的程序交互。当有必要编辑或创建PLC程序时仅需将个人计算机连到 PLC 上。

12.The processes of sequencing control and interlock logic needed for automobile manufacturing was a time consuming and arduous task, which required manual updating of relays, timers and dedicated closed-loop controllers. When a new year’s model was coming off the drawing board, skilled electricians were called on to reset the production line.(What is a PLC?) （P61）

汽车制造所需的时序控制、互锁逻辑的处理是一项耗时、费劲的工作，它需要手工更新继电器、计时器和特定的闭环控制器。 当一个新年度模型脱离制图板，熟练的电工被要求从装生产线。

13. PLCs, in essence, monitor external sensory activity from additional devices.They take in the data which reports on a wide variety of activity, such as machine performance, energy output,