加压空气部分氧化—深冷除氮工艺
Pressured air partial oxidation-cryogenic nitrogen removal process
氨气和氮气气氛下热处理
annealing in ammonia and nitrogen
氮气气调
Nitrogen controlled atmosphere
nitrogen gas adjustment
control atmosphere(CA) grain storage nitrogen
等效氮气压力
Equivalent nitrogen pressure
高压氮气贮罐
High-pressure nitrogen vessel
小型大气压氮激光器
minaturized atmospheric pressure nitrogen laser