sandrock

sandrock的英语例句

1. The landslide mainly distributed in Cretacic sandrock area in Helong city.

   和龙市地质灾害主要为泥石流,其次是崩滑灾害.

2. Sound shoot in course of sandrock failure at stope top and floor is of twin - peak character.

   大姚铜矿采场顶底板砂岩在破坏过程中声发射具有双峰性,主破裂前存在声发射相对平静现象.

3. It passes mainly through the purple -- color soft sandrock and mudstone in Triassic or Dyas Systems.

   隧道主要通过三迭系、二迭系 紫红色 软质砂岩、泥岩岩层.