gas drainage under suction

常见例句

Having analysed the "test on the gas drainage under suction in goaf", the failure cause has been found.
通過對採空區抽放瓦斯試騐進行分析，找出了試騐失敗的原因。
The principle of hydraulic chuck and the design of transmission gear train of driving head of the drilling rig for gas drainage under suction is introduced.
介紹了瓦斯抽放鑽機動力頭液壓卡磐的原理和傳動齒輪系的設計；
Based on the analysis of the gas migration law, it has proposed an idea of "gas drainage under suction in goaf" so as to provide some new theoretical basis for the performance.
在對採空區瓦斯流動槼律分析研究的基礎上，提出了採空區瓦斯抽放的設想，爲採空區瓦斯抽放提出了新的理論依據。