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矿井绞车
well winch
- 矿井提升绞车在计算低频制动电压时，通常采用低频最大力矩是平均力矩1.25倍的折算系数。
We usually take the coefficient 1.25 times the average torque as the low frequency maximum torque to calculate the low frequency braking voltage. - 介绍了绞车在矿井辅助运输中的重要性和现状及新型无极绳绞车传动系统的设计思想。
This thesis introduces the status and importance of the mine winder and the basic ideas about the new style of mine endless-rope winder's drive system. - 我国矿井提升绞车大多是采用交流异步电机拖动，其电气控制系统采用转子串、切电阻调速，由继电器-接触器构成逻辑控制装置。
China's mines are hoist AC Induction Motor Drive, and its electrical control system uses a rotor series, cutting speed resistance , by the relay - contactor control devices constitute a logical.
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中国词汇量第二的英语词典
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