saprocollite是什么意思

用法例句

The stratum of the argillaceous limestone of the third number of Badong Group (T2b3),is one of the argumentative focuses among scientific and engineering domain.

三峡库区奉节县新城区边坡,由于其变形破坏的成因机制和破坏堆积体的特殊性质,成为三峡库区地质灾害防治和边坡防护工程的重中之重,其主要地层“巴东组”第3段泥质灰岩也成为学术界和工程界多年来争论的焦点问题之一。