氮气调剖
Profile Control with Nitrogen
氨气和氮气气氛下热处理
annealing in ammonia and nitrogen
5-[(偶氯苯基)偶氮]-8-氮基喹啉
5-[(azophenyl) azo]-8-aminoquinoline synthesis
6M50空气-氢氮气联合压缩机
6M50 combination compressor of air and syngas
air-syngas co-compressor of model 6M50
丙酮/氮气混合气
acetone and nitrogen mixed gas
充(氮)气钻井液
Preventing Leak-Off and Spill-Out
冲击锤氮气灌充压力
hammer nitrogen gas charge pressure
大气氮沉降
Atmospheric nitrogen deposition
atmospheric N deposition
大气氮固定
fixation of atmospheric nitrogen