This article explicated the theory of gas production technique in vitro, the factors that affect the quantity of gas production in vitro and its research foreground.
阐述了体外产气法的原理、影响体外产气量的因素及其研究前景。
A prediction of a gas emission quantity from a seam is an important measure to the mine safety production.
预测煤层瓦斯涌出量是煤矿安全生产的一个重要措施。
The large quantity of toxic and harmful sewage with complex components and high density, which is discharged in the course of the coal gas production, is a kind of hard-treated industrial sewage.
在煤气生产过程中排出大量有毒有害污水，其水量大、成分复杂、浓度高，是一种很难处理的工业污水。
This review explicated in vitro gas production technique, including its theory, the factors that affect the quantity of in vitro gas production, credibility of tests, application and improvement etc.
本文从体外产气法的原理、影响体外产气量的因素、体外产气试验的可靠性以及体外产气法的应用和改进等几个方面作了评述。
Carrying out "Gear Transmission System" ensure the safe production. Then the quantity of reclaiming converter gas is increased and the action of workshop is improved, too.
推行“齿轮传动机制”，稳定了车间的安全生产，转炉煤气回收供应量稳步提高，车间执行力进一步增强。
Gas production rate: 1kg raw materials made of coal to gas, after quantity.
煤气产率：1kg原料煤气化后，制的得煤气量。
Gas production rate: 1kg raw materials made of coal to gas, after quantity.
煤气产率：1kg原料煤气化后，制的得煤气量。
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