coal digger

同义词释义

1)coal digger,采煤工2)coal hewer,采煤工3)getter,采煤工4)hewer,采煤工5)mining craft,采煤工艺6)Mining Technique,采煤工艺7)Coal mining technology,采煤工艺8)Mining technology,采煤工艺9)coal face,采煤工祖10)coal wall,采煤工祖