有发动机孔探经验者优先。

Engine borescope experience is preferable.

youdao

从探火孔出来的煤气着，煤气质量变差。

Come out from the gas exploration with fire hole, gas quality becomes poor.

youdao

有发动机孔探经验优先。

Engine bore-scope experience is preferable.

youdao

有发动机孔探经验优先。

Engine bore-scope experience is preferable.

youdao