non-destructive testing(NDT)
非蛋白氮
non protein nitrogen
缩略语：NPN.
暂无补充释义。
相关词条
non-symbiotic culture; sterile culture; aseptic culture
non-woven fabric
dizygotic twins【遗】 胚;non-identical twins【遗】 胚
non-ionic detergent
pulse generator using non linear magnetic elements
non-discriminatory【劳经】
non-depolarization