Remove exhaust heat shield from down pipe.

从下行管拆卸排气隔热罩。

youdao

As the bit drills down, pipe is added length after length.

随着钻头往下钻，管子一段一段地加接上去。

youdao

As the bit drills down, pipe is added length after length.

随着钻头往下钻，管子一段一段地加接上去。

youdao