Chinese translation for "three unders in coal mining"

三下采煤

Similar Words：

"three types of arthralgiz" Chinese translation, "three types of diabetes" Chinese translation, "three types of memory system" Chinese translation, "three types of talent" Chinese translation, "three unbalanced power" Chinese translation, "three unique catalytic converter" Chinese translation, "three unit code" Chinese translation, "three units are approaching" Chinese translation, "three ups and three downs" Chinese translation, "three valued" Chinese translation