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活性气体 huóxìng qì tǐ
archit. active gases
met. active gas; reactive gas
活性〔腐蚀性〕气体
earth.sc. active gas
活性气体: 13 phrases in 8 subjects
Automobiles2
Chemistry1
Electronics2
Geology1
Metallurgy2
Oil processing plants1
Plastics1
Technology3