Weak-field control of rock engineering system failure;
岩石工程系统破坏的弱场控制原理
Research on weak-field control of rock engineering system failure;
岩石工程系统破坏的弱场控制探讨
The non-linear coupling classification technique of surrounding rock mass was put forward based on the rock engineering system,considering the combined action of influential factors and paying attention to the variation of engineering state.
非线性耦合围岩分类技术是一种在岩石工程系统思想的基础上,考虑影响因素的综合作用,注重工程状态变化特点的围岩评价方法。
On Implementing Golden Petrochemical Project to Enhance Petrochemical Industry;
实施金石工程 提升传统石化
Objective] The purpose of this study was to investigate the morbidity of silicosis and pulmonary tuberculosis among stone grinding workers and to study the related risk factors that can influence the morbidity of silicosis and pulmonary tuberculosis.
[目的 ]调查磨石工人的矽肺和肺结核发病率 ,并分析矽肺和肺结核的危险因素。
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