发布日期:2021-03-22
A.remove any air that may accumulate in the system
B.take out unpleasant fumes from the refrigerant
C.vent off excess refrigerant in an emergency
D.permit opening the refrigerating system for cleaning and inspecting
热门试题
热门资讯
暂无相关推荐~
使用浏览器的分享功能,把这篇文章分享出去
确定