[机] 进给杆, 押送杆, 动力传送轴

feed rod的用法和样例：

例句

The new assembly can make the joint of the polished rod pass through, therefore can meet the need of new oil production technology.这种密封盒可以使比光杆杆体直径大得多的光杆接头通过，能满足新的采油工艺需要。

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