简答题 翻译：Multiphase flow may be categorized into four different flow configurations or flow regimes consisting of bubble flow ,slug flow ,slug mist transition flow and mist flow.

问答题翻译：As is well known gas mixture do not follow the simple gad laws but deviate from them when place under pressure.

问答题翻译：As more and more ethane and propane are extracted form natural gas, the control of the But or heating content of gas becomes mere important.