strata control

常见例句

Strata control system belongs to grey system because its position, structure and boundary condition are difficult to describe precisely.
岩层控制系统的状态、结构和边界条件难以精确描述，属本征性灰色系统。
Now the mining engineering problem has been not just the mining issues, but also to pay attention to stability and surrounding rock strata control problems.
现在的采矿工程已不仅是开采问题，而且还要注意围岩稳定性和岩层控制。
The paper adopts the theory of strata control, analyses quality and structural form of roof strata in longwall workings, and deals with the design under particular strata condition.
应用顶板控制理论分析判断长壁工作面顶板岩层质量及其结构形式，进行具体岩层条件下顶板控制设计。
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