Ml(f)ُϢ
ɸ(j)͑Ҫ
ɰ͑Ҫ
? 늻eʯӢ ȣ͑ƣmm ͻȼ(yu) ᷀(wn)ԣ1650 ⾀ʣ80% ̖늻 ϵ(sh)0% ȫԣ(yu) ϵ(sh)(yu) 摪5Mpa ʣ30% ĪӲȣ7 ?
ɶ
? ʯӢtTc1740 ɷݺ99.999 ĪӲȣ7 ܶȣ2.2 g/cm3 ԭa(chn)أKBƸ ?
? ʯӢԭa(chn)أKBƸ 躬99.99% c1750棩 ĪӲȣ6.6 ?
? ʯӢoeʯӢ ȣ1-10mm ͻȼ(yu) ᷀(wn)ԣ(yu) ⾀ʣ80% ̖ʯӢo ȫԣ(yu) ϵ(sh)(yu) ʣ90-93% ĪӲȣ7 ?
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