Now imagine that this pipe is filled with hot gas moving 50, 000 kilometers per hour.
再想象一下，这样的管道充满了每小时移动50000千米的炙热气体。
Oil temperature drop and oil contraction can cause gas space growing in oil pipe and line packing during hot oil pipeline shutdown and restarting.
热油管道停输后，管内油品降温收缩，管内会产生油蒸气空间，从而使管道再启动时出现启动充装过程。
The reason of excessive oxygen content in gas main pipe of two-stage water gas gasifier during hot reserve is analyzed, and improvement measures are put forward.
分析了水煤气两段炉热备阶段煤气总管中氧含量超标的原因，提出了解决措施。
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