介绍用常规测试仪表，测定起重制动器制动力矩变化率的方法，并对测定原理、数据处理作了说明。
The measurement method for braking moment variation rate of hoist mechanism with traditional instruments is introduced and its principle and data processing are described.
机车重量为90吨，最大时速为120公里；小时，并装有真空和空气双重制动器。
The weight of the loco is 90 tonnes and maximum speed is 120 km. h, and dual vacuum and air brakes are provided.
二极管泵浦固体激光器（DPL）输出光束的方向在某个微小范围内存在随机变化，这种光束指向性的波动在某种程度上严重制约了DPL的应用。
The output beam of diode pumped solid-state laser(DPL) has minute random variation in direction, which results in the restrictions on the appliance of DPL.
应用推荐