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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 | |||
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