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铝镍钻高保磁力磁铁
gen. alnico (铝12% ~20%,镍20%,钻5% ~ 10%;或铝 1% ~2%,镍 10% ~ 20%,钻 0.5% ~4%,铁 60% ~ 70%)
铝镍钻
: 12 phrases in 6 subjects
Architecture1
Aviation1
Earth sciences1
General6
Metallurgy2
Space1