Gas to Liquid短语¹⁴⁴⁹⁷²⁺² 基本例句 天然气制合成油 The general expression of friction factor for gas phase is derived, then the new expressions of void fraction and velocity ratio of gas to liquid are given and discussed. 首先推导出气相摩擦乘子的一般表达式,然后求得空泡份额与滑速比的解析式,并进行了分析讨论。 cnki