gassy mine वाक्य
"gassy mine" हिंदी में gassy mine in a sentenceउदाहरण वाक्य
- Gas prevention and control of high gassy districts in low gassy mines
- Comments on comprehensive gas control technology for high gassy mine
- Gas emission law and comprehensive gas control technique in low gassy mine
- Gas geology method for regional prediction of coal and gas outburst in gassy mine
- Feasibility analysis of gas comprehensive controlling in abnormal gas district of low gassy mine
- Preliminary approach to coal and gas outburst control in local high - gassy mines in jincheng
- Matters for attention in extraction design of seams with spontaneous combustion in high gassy mine
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