• 依据江西省46个勘查252个煤测试成果提出了瓦斯含量作为划分煤层瓦斯风化主要指标

    Based on measured data of 252 coalbed gas samples from 46 exploration areas in Jiangxi Province, the main index for gas weathering areas according to gas content data are presented.

    youdao

  • 重点论述风化煤层开采覆岩破坏移动演化特征

    The characteristics of damage, movement, evolution in mining coal bed in weathered zone were discussed mainly.

    youdao

  • 重点论述风化煤层开采覆岩破坏移动演化特征

    The characteristics of damage, movement, evolution in mining coal bed in weathered zone were discussed mainly.

    youdao

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定