The result shows that the numerical simulation has truly reflected the basic law of gas flow and can predict gas flow quantity from boreholes in coal seam.
研究结果表明，数值模拟准确反映了煤层瓦斯流动基本规律，能够定量预测煤层钻孔瓦斯流量。
The results show that the pressure drop is chiefly influenced by gas flow rate, and the action of added material quantity is concerned with gas circulation.
结果表明压降主要受送气量的影响。加料量的作用与气体循环有关。
The air-passage device can adjust the flow quantity and input any required gas randomly.
※气路装置可任意调节流量，能任意输入各种所需气体。
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