? 늻(li)eʯӢ ȣ͑(h)ƣmm ͻȼ(j)(yu) ᷀(wn)ԣ1650 ⾀(xin)ʣ80% ̖(ho)늻 (yng)ϵ(sh)0% ȫԣ(yu) (do)ϵ(sh)(yu) 摪(yng)5Mpa ʣ30% ĪӲȣ7 ?
2013-04-22 0
? ʯӢo(h)(li)eʯӢ ȣ1-10mm ͻȼ(j)(yu) ᷀(wn)ԣ(yu) ⾀(xin)ʣ80% ̖(ho)ʯӢo(h) ȫԣ(yu) (do)ϵ(sh)(yu) ʣ90-93% ĪӲȣ7 ?
2013-04-19 0