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oxygen-free [ˌɒksɪdʒən'friː, ˌɑːk-]
met. 无氧的
oil.proc. 不含氧的
oxygen free
tech. 无氧的; 不含氧
oxygen-free: 40 phrases in 16 subjects
Agriculture1
Chemistry1
Earth sciences2
Ecology1
Electric machinery1
Electronics3
General2
Geophysics1
Life sciences2
Metallurgy10
Nuclear and fusion power1
Oil / petroleum5
Oil processing plants2
Space2
Surgery1
Technology5

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