Reattach the relief valve hose to the elbow in the bottom flange cover.
重新将安全软管接到底部法兰盖内弯头。
Reattach the relief valve hose to the elbow in the bottom flange cover.
重新将安全软管接到底部法兰盖内弯头。
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.
柯达火药在较高压力下较高速度燃烧,所必须使用一个溢流,当用气少时,能让所产生部分气体排到大气中去。
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