Chinese translation for "roofofcoalseam"

煤层顶板

Similar Words：

"roofless" Chinese translation, "rooflet" Chinese translation, "roofline" Chinese translation, "roofloy" Chinese translation, "roofmaster" Chinese translation, "roofrock" Chinese translation, "roofstation" Chinese translation, "roofstructuretofalls" Chinese translation, "roofthrust" Chinese translation, "rooftimbering" Chinese translation