If a leak develops in a customer system, close the cylinder valve and vent residual product, and purge the lines with inert gas before attempting repairs.
如果在用户的系统里发生了泄露，关闭阀门并排出残余产品。在试图修理之前，用惰性气体净化管道。
In order to find out the effects of inlet system dimensions on the gas exchange quality of gasoline engines, a FDM code was used to simulate the gas exchange process of a 3 - cylinder gasoline engine.
为研究进气系统结构参数对汽油机换气过程的影响，用有限差分法编制的程序对某3缸汽油机的换气过程进行模拟计算。
Both of them adopt mix gas of CO_2 (98%) and PH_3 (2%) as fumigant which compressed in the cylinder. The system can kill all insects at each stage through long time fumigation at a low concentration.
二者均采用压缩在钢瓶中的98% CO_2和2% PH_3混合气体作为熏蒸剂，对粮仓进行低浓度长时间的熏蒸，以达到全部杀死各阶段粮食害虫的目的。
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