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invar In indium | |||
Invar (alloy, 36Ni,0.2C,余量 Fe); Invar alloy | |||
invar | |||
Invar (一种热膨胀系数极小的铁、镍合金) | |||
invar steel; irvar | |||
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invar steel | |||
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invar |
殷钢 : 25 phrases in 10 subjects |
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