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s@NY(ji)(gu)ʽܱڵă(ni)ɌӞ鲣䓌Ǵ_ƷďȺ̈́ȡ(ni)ɲ䓌cY(ji)(gu)ӳ≺ɊAɰcY(ji)(gu)ӳܣܝMO(sh)ܵҪ
1(ni)r
(ni)rӣַQ(ni)ӣ֬wԱֺᘿ֞ӏϽMɵ֬80%Ҳи֬Ҫǵ|(zh)gÁˮ|(zh)Ľgֹ?ji)B©
2Y(ji)(gu)
Y(ji)(gu)ԟoAwSp@֬30%~60%Ǹ(j)r͉ȼͨ^׃wSp@Ƕȁ_O(sh)ӋҪҪDZCa(chn)ƷԴ_䓹ܵďȺ̈́
3p@
p@Ӵ50%,֬50%Ҫ߲䓹ܵĄ
4
֬Ͽϻ⾀ՄgȁɌa(chn)Ʒⲿoa(chn)Ʒϻ֬80%ӵĺȴ0.5mm
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һƪʽl(f)ʽԭ