警号171801
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机床报警号中英文对照
ARM NUMBER ALARM DESCRIPTION A000.0 A000.1 A000.2 A000.3 A000.4 A000.5 A000.6 A000.7 A001.0 A001.1 A001.2 A001.3 A001.4 A001.5 A001.6 A001.7 A002.0 A002.1 A002.2 A002.3 A002.4 A002.5 A002.6 A002.7
A003.0 1030 A3.0 HYDRAULIC MOTOR OVERLOAD 液压马达过载
Hydraulic adj. 水力的, 水压的
Hydraulic motor 液压马达, 液压[液力]发动机
A003.1 1031 A3.1 MACHINE AIR PRESS SW FAIL 机器的空气压力失败 空气压缩失败
Machine n. 机器, 机械, 机动车辆, 机构, 设计, 机械般工作的人, (政党的)领导
集团, 核心组织 vt.机器制造, 用车床加工
A003.2 1032 A3.2 MACH AIR FILTER CLOGGED
电力电子课后复习资料171801
课后习题
习题：课本P42：2，3，4，7
1. 画出二极管，普通晶闸管，电力晶体管，可关断晶闸管，功率场效应晶体管，绝缘栅双极型晶体管等电力电子器件的符号并标注各引脚名称，器件简称 2. 绝缘栅双极型晶体管是 和 的复合管。
3. 电力电子器件组成的系统，一般由 、 、 三部分组成。有些系统还需要 。
由于电路中存在电压和电流的过冲，往往需添加 。
4. 按照电力电子器件能够被控制电路信号所控制的程度，可将电力电子器件分
为： 器件， 器件，不可控器件等三类。 5. 按照驱动电路加在电力电子器件控制端和公共端之间的性质，可将电力电子
器件分为 和 两类。
6. 电力二极管的工作特性可概括为 。 7. 请画出电力二极管的静态特性，并做简要描述。
8. 【】晶闸管属于( )。
A. 全控型器件 B.场效应器件 C.半
171801口语考试材料(5作文+5翻译)
171801口语考试材料（5作文+5翻译）
作文5篇：
1. Directions: For this part, you are allowed 30 minutes to write an advertisement on your campus website to sell a bicycle you used at college. Your advertisement may include its brand, specifications/features, condition and price, and your contact information. You should write at least 120 words but no more than 180 words.
Used Bicycle on Sale
A used Canyon bike is on sale! Though used, it’s still a fast and reliable road bike for it is well maintained and in good condition with suitable sea
171801口语考试材料(5作文+5翻译)
171801口语考试材料（5作文+5翻译）
作文5篇：
1. Directions: For this part, you are allowed 30 minutes to write an advertisement on your campus website to sell a bicycle you used at college. Your advertisement may include its brand, specifications/features, condition and price, and your contact information. You should write at least 120 words but no more than 180 words.
Used Bicycle on Sale
A used Canyon bike is on sale! Though used, it’s still a fast and reliable road bike for it is well maintained and in good condition with suitable sea
171801口语考试材料(5作文+5翻译)
171801口语考试材料（5作文+5翻译）
作文5篇：
1. Directions: For this part, you are allowed 30 minutes to write an advertisement on your campus website to sell a bicycle you used at college. Your advertisement may include its brand, specifications/features, condition and price, and your contact information. You should write at least 120 words but no more than 180 words.
Used Bicycle on Sale
A used Canyon bike is on sale! Though used, it’s still a fast and reliable road bike for it is well maintained and in good condition with suitable sea