gas drainage rate

基本解釋

These conclusions aid to measure drainage rate of gas and fixing on maintenance period of coal laneway.
這些結(jié)論對于檢測煤層瓦斯抽放率以及合理確定煤巷的維護(hù)周期具有重要的參考價值。
This paper studies the purpose is to find a kind of efficient lies in the actual production of low permeability of feasible coal permeability gas drainage, thus improving the rate of new methods.
本論文研究的目的就是在于尋找一種高效率的，在實際生產(chǎn)中切實可行的提高低透氣性煤層滲透率，從而提高瓦斯抽放率的新方法。
Drainage through the system out, so that exhaust gas purification rate of 98%, greatly purified the shop working environment.
通過該系統(tǒng)抽排出去，對尾氣凈化率達(dá)到98%、大大凈化了車間工作環(huán)境。