混凝土地坪的爆破拆除既可以用常规浅孔破碎法也可以用透孔法。

Both common shallow-hole blasting and through-hole blasting can be used for demolition of concrete ground.

youdao

混凝土地坪的爆破拆除既可以用常规浅孔破碎法也可以用透孔法。

Both common shallow-hole blasting and through-hole blasting can be used for demolition of concrete ground.

youdao