开采机理 meaning in Chinese

production mechanism
recovery mechanism
withdrawal mechanism

Geochemical study on ordovician condensate pool formation of the qianmiqiao buried hill
千米桥潜山凝析气藏数值模拟开采机理研究
Based on testing data in worksite and engineering practice , the strata damage movement characteristics , rock properties of weathered zone and qualitative and quantitative analysis of the mechanism of coal layer safety extraction in efflorescent oxygenized belts were discussed
摘要根据现场观测和工程实践，论述了风氧化带内煤层开采时，覆岩破坏移动特征，风化带岩石属性和风氧化带内煤层安全开采机理的定性、定量分析。