purging在句中的意思? in order to control the magnitude of the exotherm, the Ethylene Treater is filled in stages by purging at low pressure with a stream of ethylene diluted with nitrogen. 下面是我的翻译: 为了控制温升的速度,在 乙烯 处理器填充的过程中,通过排放低压乙烯流中的稀释 氮气 。 还有别的意见没? 查看更多17个回答 . 5人已关注