1、The third step, the cable soldered to the pin hole soldering.
第三步，把電纜焊接到針焊接孔上。

2、There is a pin hole between outside shell and output axis.
外套與輸出軸的徑向有一個插銷孔。

3、Pin hole bolt ruptures under its service.
銷孔螺栓在服役期限內(nèi)發(fā)生斷裂。

pin hole翻譯