提出了预测铸钢件中缩松缺陷的数值方法，考虑了传热、枝晶间液相流动和气体析出等因素。
A numerical analysis method is presented to simulate the shrinkage porosity formation in steel castings on the basis of heat flow, interdendritic fluid flow and possible evolution of dissolved gases.
当高电流密度引起电极上气体析出失控时，便会发生击穿。 气体的产生消耗电流引致泳透力下降，则不可能使隐蔽表面涂上漆。
Throwpower drops off as current is consumed in the production of gas and is not available to permit the covering of recessed areas.
电解通常同时在一个或两个电极上析出气体。
Electrolysis is usually accompanied by gas evolution at one or both electrodes.
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