ʯӢɰ-Ҫ
P(gun)]
ʯӢɰʯӢʯ(jng)ӹɵʯӢwʯӢʯquartz rockQʯһN|(zh)؈ӲĥW(xu)|(zh)(wn)Ĺ}VȻʯӢɰrʯӢr}ʯӢʯӢɰrǹ̽Y(ji)мrʯʯӢм_95%ϣʯӢɰԴڸNr{rer׃|(zh)r|(zh)V^VLʯĸVʯӢrֳe׃|(zh)ɷNǰмwczY(ji)Ľ@ָ׃|(zh)̶|(zh)ʯӢrVʯ}ʯӢɟҺγȫʯӢM܉K(gu)ʯӢɰеVﺬ׃^ʯӢΞLʯĸrмصVVʯӢɰһNӲĥW(xu)ܷ(wn)Ĺ}VҪVɷSiO2 ʯӢɰɫɫoɫӲ7Դoؐڣ֬ܶȞ2.65ѷeܶȣ1-20Ŀ1.620-200Ŀ1.5仯W(xu)W(xu)͙Cеܾ@ĮKOHҺc1750ʯӢɰҎ(gu)У0.5-1mm1-2mm2-4mm4-8mm8-16mm16-32mm10-20Ŀ20-40Ŀ40-80Ŀ100-120Ŀ