level pillar的例句大全

According to field geologic survey, find out the occurrence condition 、 geologic surrounding and ground pressure appearance of copper level pillar. According to monitoring results of actual project, find the distribute rule of horizontal jamb stress and characteristic of pivotal place destabilization. 5.

通过现场地质调查，摸清了凤凰山铜矿-240m水平矿柱的赋存条件、地质环境以及地压显现状况；通过工程现场监测试验，得到了水平矿柱整体应力分布规律与关键部位失稳破坏的特点。

Reasonable width analysis of coal pillar preserving gateway in fully-mechanized sub-level caving

综放回采巷道护巷煤柱合理宽度分析

Rational Coal Pillar Dimension and Optimization of Sub-level Roadway Layout for Huating Colliery

华亭煤矿合理煤柱尺寸确定及分层巷道布置优化

grounding resistance of catenary pillar has the most important effect on lightning withstand level of catenary.

同时,接触网支柱的接地电阻对接触网的耐雷水平影响较大.

current, its will make pillar industry gradually, enter develop level amain .

目前，其将逐渐成为支柱产业，进入全速发展阶段。

Current, its will make pillar industry gradually, enter develop level amain.

目前, 其将逐渐成为支柱产业, 进入全速发展阶段.

The level police department is the pillar and cornerstone of the country's policing work.

基层警察机构是整个国家警务工作的支柱和基石.