Ml(f)ُϢ
ɸ͑(h)Ҫ
ɰ͑(h)Ҫ
? 늻(li)eʯӢ ȣ͑(h)ƣmm ͻȼ(yu) ᷀ԣ1650 ⾀(xin)ʣ80% ̖늻 (yng)ϵ0% ȫԣ(yu) ϵ(yu) 摪5Mpa ʣ30% ĪӲȣ7 ?
ɶ
? ʯӢtT(mn)c(din)1740 ɷݺ99.999 ĪӲȣ7 ܶȣ2.2 g/cm3 ԭa(chn)أKBƸ ?
? ʯӢԭa(chn)أKBƸ 躬99.99% c(din)1750棩 ĪӲȣ6.6 ?
? ʯӢo(li)eʯӢ ȣ1-10mm ͻȼ(yu) ᷀ԣ(yu) ⾀(xin)ʣ80% ̖ʯӢo ȫԣ(yu) ϵ(yu) ʣ90-93% ĪӲȣ7 ?
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