海词手机词典

This article bases specifically on engineering geology condition of one cutting slope in Guangdong Shanmei highway, and adopts laboratory similarly model test to investigate and discuss the strengthening machanism of multi-bolts and its effect.

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