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离子源
met. ion source
tech. ionic source
water.res., ecol. ionic sources
离子〔放射,辐射〕源
gen. source
离子源: 130 phrases in 16 subjects
Agriculture2
Aviation3
Chemistry11
Construction1
Earth sciences7
Ecology3
Electronics52
General4
Geology1
Geophysics1
Metallurgy2
Space7
Technology31
United States1
Water resources2
Welding2