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ion bombardment
met. 离子轰击碰撞
plast. 离子轰击〈使塑料非极性粘接面极化〉
space 离子轰击
ion bombardment: 18 phrases in 9 subjects
Agriculture1
Biotechnology1
Chemistry3
Electronics5
Genetics1
Metallurgy1
Shipbuilding1
Space4
Technology1