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1.ӣϲáϸߵɳɽؽʱδҪ^ʩʣʩлʣԸˮϵͳעˮԡ
2.ʩʡӣҴҼУΪӪʩǹؼʵʩʱһ9ϡѮУʩӦݹСڵĹһʩ50100лʣ23ơ0.50.8ء0.20.3ɰ0.20.3ʩʷɰͶӰԶڿӻڻ״ϵֲͶӰؿ״30ҡʩˮﵽˮٷʡͣˮºӺϡעʩʱҪȫʩϸ
3.ʡҶʿӳҶƬڣʹӪʣڹڣϵ귢ѿҪ^8Ѯ9Ѯÿ1020ʩһΣ23Ρʩ0.5%0.8%Һ0.2%0.4%Һ^ɵʩ4%ľҽҺ.֦졣ʩһҪ5ԺС
̩ľ˾λ̩ɽϲƷʾĸ15꣬600Ʒ֣ļйԻ600ĶԲľ1000꣬Ʒִͬ
