NBabbr.注意(=nota bene)
Nb-based alloy铌合金
NBS A time scale国家标准局原子时标
Nb bearing steel含Nb钢
NBC patient flow核化伤员流
Nb microalloying铌微合金化
Nb alloying layer渗铌合金层
Nb-based alloys铌基合金
nbjective symptom[医] 客观症状
Nb-microalloying铌的微合金化
Nb-bearing steel含Nb钢