In seems to be difficult to explain why eruption occurred in the liquid-liquid system and was not detected in the present gas-liquid systems. This problem should be studied more precisely.
在似乎是难以解释为什么喷发发生在液液系统，并没有发现在目前的气液系统，这个问题应该研究更准确。
Discharge valve can be will collect the liquid and solid particle emissions, prevent the liquid flow off the downstream, the pollution downstream compressed air system.
排放阀可以将收集的液体和固体微粒排放掉，防止液体流向下游端，污染下游端的压缩空气系统。
It has been proved by test that the problem of large space simulator liquid nitrogen system starting has been solved successfully in simulator liquid nitrogen system.
通过初步调试证明，液氮系统能够很好地解决大型空间环境模拟设备液氮系统启动困难的问题。
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