请帮忙翻译Nitrogen-trace gas test 和Air-soap test? 1# 译域无疆 as with any piece of thermal equipment, the exchanger should be bought to or from operating or derime conditions slowly.  nitrogen-trace gas test 和air-soap test?与上面提供的句子什么关系呢?在您提供的信息中看不出来。 个人理解:air-soap test——气密性实验:具体做法,先用肥皂水涂在需要检测的连接处,然后通入空气,如果有泡泡产生并且泡增大,说明密封不严。 查看更多