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һӪƷ˷ȡ׼һͷþȫӪƷ˷Ǹݶʵػۺϼģȡ߼˷ѣÿͷʽȡͷҲͬ˷Ѽ߼˷=˷+˷ʽͣ1ʵأKG=Ʒ2أKG=Ʒ(CM)*(CM)*ߣCM/ϵ һַӳܶȵļķʽ͡

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һ 1.1 ǡ֪ʶȨάȨϵͳʹЭ顷³ơЭ顱ĸΪЭ鲻ɷָһ֣ЭͬЧ1.2 еġάȨָȨԾƽ̨www.jd.comڵľӪṩƷ񣬻ƷṩչʾƷϢпַ֪ʶȨרȨ̱ȨȨȣάϷȨΪ1.3 еͶ