upper stratum的例句大全

it can convince the majority of the bourgeoisie, of the bourgeois intellectuals and of the upper stratum of the petty bourgeoisie.

资产阶级的多数，资产阶级知识分子的多数，上层小资产阶级的多数，是可以说服的。

pavement technology scheme discussion after descending expressway upper stratum

工后沉降高速公路上面层后铺筑技术方案探讨

The stratum of main source rock among the marine facies is the upper Sinian and the Paleozoic group.

其中海相地层中的主力烃源岩层为上震旦统和上古生界石炭―二叠系。

construction technology of trench for diaphragm wall in the upper soft and lower hard stratum

上软下硬地层地下连续墙成槽施工

since lump size of upper-immediate roof is large, a semi-arch equilibrium structure of the stratum-rock sometimes can be formed.

上位直接顶岩块强度较高、块度较大，容易形成“岩-矸”半拱式平衡结构。