Since cordite burns at a greater rate at a higher pressure a relief valve must be used to allow generated gas to escape to atmosphere at times when the demand is low.
因为柯达火药在较高的压力下以较高的速度燃烧，所以必须使用一个溢流阀，以便当用气少时，能让所产生的部分气体排到大气中去。
The process featured using the negative pressure of Venturi tube to continuously absorb the chlorine gas generated in electrolysis and continuously produce sodium hypochlorite solution.
该工艺的特征是通过文丘里的负压，不断吸收电解产生的氯气，从而连续不断地生产次氯酸钠溶液。
Gas with certain pressure is generated and is transmitted into the air-actuated hydraulic device through the control valve.
产生具有一定压力的气体。经控制阀送入气动液压装置中。
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