thrust speed of main machine

• 推进速度

thrust speed of main machine的用法和样例：

例句

1. The paper analyzes the direction and size of driving speed and force of shearer height-regulating mechanism and offers a practical calculation of main parameters.
   针对采煤机调高机构截煤时的推进速度和推进力大小方向进行分析，给出了其主要参数的具体计算方法。