gas drainage under suction

常見例句

Having analysed the "test on the gas drainage under suction in goaf", the failure cause has been found.
通過對采空區(qū)抽放瓦斯試驗進(jìn)行分析，找出了試驗失敗的原因。
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.
介紹了瓦斯抽放鉆機動力頭液壓卡盤的原理和傳動齒輪系的設(shè)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.
在對采空區(qū)瓦斯流動規(guī)律分析研究的基礎(chǔ)上，提出了采空區(qū)瓦斯抽放的設(shè)想，為采空區(qū)瓦斯抽放提出了新的理論依據(jù)。