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专业英语大作业

专业英语大作业
专业英语大作业

数控技术应用专业英语2011-2012年度第二学期补考

姓名:______________________

学号:______________________

专业:______________________

班级:______________________

成绩:______________________

一、Translate the following sentences into Chinese. (20×2.5=50分)

·

1.The CNC concept was proposed in the late 1940s.

数控的概念,提出了在20世纪40年代末。

https://www.doczj.com/doc/8e2859832.html,C lathes are primarily used to rotate body workpieces with turning.

数控车床主要用于旋转与旋转体工件。

3.The program cannot be stored in some media.

该方案不能被储存在一些媒体上。

4.The world’s major industrialized countries don’t pay attention to the research and development of NC machining technology.

世界主要工业化国家不重视数控加工技术的研究和发展。

5.Vertical CNC lathes are used to turn large diameter disc -type workpieces.

立式数控车床是用来打开大直径圆盘型工件。

6.In the fifity years from the time the first NC machine tools came out to now, it

experienced six generation NC systems.

从第一数控机床出来到现在的时间fifity年,它经历了六代数控系统。

7.Headstock is the main component of CNC lathes.

主轴是数控车床的主要组成部分。

8.In terms of cost, the NC machine tool is always more expensive than the

general purpose machine tool.

数控机床是在成本方面,总是比通用机床更昂贵。

9.One of CNC lathe's main features is high production efficiency.

数控车床的主要特点之一是生产效率高。

10.NC machine tools generally consist of input device, servo system, measuring feedback device and the main body of the machine tool.

数控机床一般由输入装置,伺服系统,测量反馈装置和机床主体组成。

11.The modern NC system is capable of exchanging information by using

communication.

现代数控系统是通过通信交换信息的能力。

https://www.doczj.com/doc/8e2859832.html,C machines have to be programmed,set up,operated and maintained by highly skilled personnel.

数控机床进行编程,设立,运作和维持高技能人才。

13.Eearly machine tools were designed so that the operator was standging in front of the machine while operating the controls.

eearly机床设计,使操作者在机器前standging经营的控制。

14.Most workpieces can be completed with one setup on a single machining center often.

一个经常在一个单一的加工中心设置就可以完成大多数工件。

15. Machining centers are classified as vertical,horizontal and universal machining center.

被列为纵向,横向和万能加工中心加工中心。

16.The main components of CNC machining center are bed,saddle,column,table and servo system etc.

数控加工中心的主要组成部分是床,马鞍,列,表和伺服系统等。

17.The tool changer can store tools and change it automatically.

换刀可以存储工具,它会自动改变。

https://www.doczj.com/doc/8e2859832.html,C machine tools can solve the machining problems of complex parts.

数控机床可以解决复杂零件的加工问题。

19.Machining centers have automatic tool changing capabilities and tool magazine.

加工中心自动换刀功能和工具杂志。

20.The machining process is performed automatically so that the operator only needs so set tools, load/unload workpieces and change tools at the beginning of machining.

加工过程中会自动执行,使操作者只需要这样设置的工具,加载/卸载在开始加工工件和变化的工具。

二、Translate the reading material into Chinese. (20+10+20=50分)

1.A vertical machining center has the spindle oriented in the vertical position. An automatic tool changer is mounted to the machine(usually on the left side)to allow tools to be loaded into the spindle without operator intervention. Basic vertical machining centers will allow three directions of motion. Some vertical machining centers also have a rotary table or indexer mounted on the table to allow a workpiece to be rotated during machining.

A horizontal machining center has the spindle oriented in the horizontal position. An automatic tool changer is equipped to allow tools to be automatically placed in the spindle. The table of most horizontal machining centers can rotate by either an indexer or a rotary axis. If the machine has a rotary axis,the rotation is called the

B axis. A horizontal machining center is no more difficult to program than a vertical

machining center.

一个立式加工中心主轴导向的垂直位置。自动换刀安装到机器(通常在左边),以允许将装入主轴,无需操作员干预的工具。基本的立式加工中心将允许三个方向的运动。一些立式加工中心,也有一个旋转的表或索引器安装在桌子上,使工件在加工过程中旋转。

有一个卧式加工中心主轴导向的水平位置。一个配备自动换刀,让工具被自动置于主轴。最卧式加工中心的表可以由索引器或旋转轴旋转。如果本机有一个旋转轴,旋转,被称为B轴。卧式加工中心是没有难度比立式加工中心方案。

2.The use of CNC machines will still increase in the future. Not only in industrial production but also in small workshops,conventional machines will be replaced by CNC machines. The application of CNC technics also contain the classic machines

such as lathes,milling machines or to the metalworking area. One could say,nearly every day a new application of CNC technics is realized. Practically all occupations such as technical designer,technical manager or salesman,skilled worked,methods engineer and controller etc.

数控机床的使用在未来仍将增加。不仅在工业生产中,而且在小作坊,将取代传统机床数控机床。数控工艺的应用,也包含经典的机器,如车床,铣床,或以金属加工区。可以说,几乎每一天,新的应用,实现了数控工艺。几乎所有的职业,如技术设计师,技术经理或业务员,工作技能,方法,工程师和控制器等

3.All maintenance shops and work areas should be marked with the correct colors to identify hazards,exits,safe walkways and first -aid station. It is acceptable to use material other than paint,such as decals and tapes,in the appropriate,similar colors. Listed below are the main colors authorized for using in maintenance shops.

·Red color markings should be used to identify the following equipment or locations:

·Fire alarm boxes.

·Fire blanket boxes.

·Fire pumps.

·Emergency stop buttons for electrical machinery.

·Emergency stop bars on hazardous machines.

·Caution signs.

Green color markings normally on a white color background should be used for the following equipment or locations: First -aid equipment and first -aid dispensaries.

Safety starting buttons on machinery.

Orange markings are used to designate dangerous components of machines or energized equipment,including electrical conduits,which may cut,crush,shock or injure.

所有的维修店和工作区应标明正确的颜色,以确定危害,出口,安全的人行道和急救站。它是可以接受的材料比其他涂料,在适当情况下,类似的颜色,如贴花和磁带。下面列出的是授权维修店使用的主色调。

·应使用红色标记,以确定下列设备或地点:

·火灾报警箱。

·防火毯箱。

·消防泵。

·电气机械紧急停止按钮。

·危险机器的紧急停止酒吧。

·警告标志。

绿色标记在白色背景,通常应使用以下设备或位置:急救设备和急救药房。

启动按钮,机器的安全。

橙色斑纹,用于指定机或带电设备,包括电气导管,可切割,粉碎,冲击或伤害的危险成分。

英语作业及答案

下面的范文中有很多错误,请找出形容词与副词的混淆、冠词的遗漏和误用、介词和代词的误用等错误,并检查句子的完整性、单词拼写、主谓的一致性、动词和现在分词是否混淆、复数形式、动词的时态、词汇选择、词性、单词的顺序等问题。 (几乎每个句子都有错误) An university education is a goal of many high school students. Some students want to go into a profession that requires an university degree. But there are other professions that do not require a degree, but require certification from a technological college. The reasons why students make decisions to go to technical college instead of university probably have a lot to do with their choice of career, their own academic abilities and their financial situation. First of all, students make their choices for post-secondary education based on the fields that interest them. A student who is interested in medicine might decide to university, into a pre-med program to prepare to become a doctor, or they might go to nursing school or a nursing program in a technical college. Some career choices offer a choice of educational route. The university route is usually more intense and takes longer. For example, an interior designer might take a one or two year program at a college, or choose to do the degree program as a part of the architectural department at a university. Other career choices involve certification that is available at a college, like broadcast journal or

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