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。
A needle valve with a threaded spindle is unscrewed to open a passage for the liquid to escape to the reservoir from the cylinder when the jack is required to be lowered.
当千斤顶需要下降时，一个带锭子的针型阀门被放松来使液体通过圆筒流回储备液箱。
The escape valve of Labour mobility is half-blocked.
劳动力灵活性排出阀一半被阻拦。
A pressure relief valve is also provided at the top of the chamber to allow the vapor to escape when a predetermined internal pressure is reached.
在腔室顶部还有一个压力释放阀，当达到腔室内预定的内部压力时，压力释放阀可释放蒸汽。
Fuel vapor that is not condensed as a result of cooling can escape from the chamber through a float needle valve at the top of the chamber.
冷却时未冷凝的燃料蒸汽通过位于腔室顶部的浮动针阀可以从腔室中逸出。
Fuel vapor that is not condensed as a result of cooling can escape from the chamber through a float needle valve at the top of the chamber.
冷却时未冷凝的燃料蒸汽通过位于腔室顶部的浮动针阀可以从腔室中逸出。
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