海词手机词典

The geologic hazards in Huatong copper mine in Wafangdian, Liaoning Province involve tailing dams, seawater invasion, surface collapse, water bursting from pit, wallrock deformation and roof falling.

播放读音 播放读音

以上内容独家创作,受著作权保护,侵权必究

海词词典,十七年品牌