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ʱ䣺2020/02/27

ֳƹۻ̻ңǴϽֵŷŵռĿϸ̳ɫdzҵҡҵҪɷǶ裬ǽϸIJ壬Ϊ0.1-1.0mmˮ1/50-1/100ȱΪ18.5-20m2/g

ʯӢɰҪɷҲǶ裬Ϊ壬߻ɽһԣĥϸ󲻿ΪĹʹá

кܸߵĻɽһԣƸǿǿһΪˮ5%-10%Ƴǿʱʵߡ

ڹҾи߱ȱˮܴ󣬽úҵΪϲϣˮԱ֤ĺԡ¼ãƸǿǿƻĿ׽ṹ߻ԺͿԣƼϷӦ