高压氢气储存
compressed hydrogen tanks
液态氢气泡室
liquid hydrogen bubble chamber
6M50空气-氢氮气联合压缩机
air-syngas co-compressor of model 6M50
6M50 combination compressor of air and syngas
CNG地下储气井
CNG underground storage well
氨气和氮气气氛下热处理
annealing in ammonia and nitrogen