4枣庄学院机电工程学院专业外语试卷B工业设计

得分 阅卷人 二、Translate the following fifteen Chinese words or phrases into English 共 15 题，每 共15分 I 频谱改变 ⑵线性误差 ⑶机电一体化系统 ⑷嵌入 ⑸编码器 ⑹单片机 ⑺控制策略 ⑻轮流 ⑼动态响应 10反馈控制系统 II 机械设计 12 冷却剂 13 疲劳 Q4因果关系 15瞬态响应 得分 阅卷人 三、Translate the following five English sentences into Chinese 共5题，每题3分，共15分’ l The most basic definition centers around the type of bonding existing between the atoms of the Element, and around the characteristics of certain of the electrons associated with these atoms. 2 Machinability means several things To production men it generally means being able to remove metal At the fastest rate, leave the best .possible finish, and obtain the longest possible tool life. 3 Safe operation is consistent with the economic objective of process control, which is to operate the Plant in such a way to minimize total costs. 枣庄学院20122013学年第一学期 专业方向选修课专业英语考试试卷 考试时间2013年1月2日10时10分 12时10分试卷类型B 题号 一 二 三 四 五 六 七 八 九 十 成绩 复核 签字 得分 登分 签字 说明本试卷分一部分，共6大题，共100分；答题要求开卷 考生须知 1. 姓名、学号、学院、专业、年级、班级必须写在密封线内指定位置。 2. 答案必须用蓝、黑色钢笔或圆珠笔写在试卷上，字迹要清晰，卷面要整洁，写在草稿纸上的一律无效。 得分 阅卷人 一、Translate the following twenty English words or phrases into Chinese 共 20 题，每题 1分，共20分 I opaque ⑵ ductile 3 grain boundary 4 wrought 5 forgeability 6 microstructure 7 polymer ⑻ stabilizer ⑼ shear 10 impact II twist n]r * 12 radiator 13 warranty 04 amplifier 15 thermometer 16 DDC 17 aptitude 18 calibration 19 cutoff frequency 20 comparator 得分 阅卷人 五、Translate the following four English paragraphs into Chinese （共 4 题，每题 5 分， 共20分） Paragraph A [5 Points] Welding at a slower rate puts in more heat and heats a large volume of metal, so the cooling rate due to loss of heat to the base metal is decreasedo A preheat will do the same thing. For example, sae4150 steel, preheated to 600 or 800, can be welded readily. When the flame or arc is taken away from the weld, the cooling rate is not so great, owing to the higher temperature of the surrounding metal and slower cooling results. Even the most rapid air-hardening steels are weldable if preheated and welded at a slow rate. Paragraph B [5 Points] By its nature process control is concerned with the dynamic behaviour of systems. It is no longer sufficient to make the steady-state assumption. Because of the extra mathematical complexity involved in a quantitative treatment of control this section will, instead, concentrate on general concepts rather than detailed analysis of specific applications. Paragraph C [5 Points] Safe operation is consistent with the economic objective of process control, which is to operate the plant in such a way to minimize total costs. This involves maintaining product quality, meeting production targets and making efficient use of utilities such as steam, electricity, cooling water and compressed air。 4 Absolute sensitivity is the ratio of