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һ֤ƶ
֤ƶȾڻУÿһ߱밴ڻԼֵһ(ͨΪ5%-10%)ʽΪڻԼIJڻ۸䶯ȷǷʽʹ֤ˮƽӦˮƽ֮ϡƶϱ֤˲ڻÿһкԼijš
ǵͣƶ
ǵͣƶָڻԼһеĽ۸øڻڹ涨ǵȣȵı۽ΪЧܳɽ뱣֤ƶҪķչƶȣȱ֤ÿһߵı֤ܵһĽգͨÿծƶ(ڵĽгֿĽߣڴտǰ㱣֤)ڻĽձȡ
ֲƶ
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ġƶ
ƶָԱͻijƷֲֳֺԼͶͷﵽ涨Ͷͷֲ80%()ʱԱͻ(ͨͻԱ)ӦʽͷȡֲƶȽصķг۸гյҪƶȡ
塢ǿƽƶ
ǿƽƶָԱͻĽױ֤㲢δڹ涨ʱڲ㣬ߵԱͻijֲ涨ʱڻ˾Ϊ˷ֹսһʵǿƽֵƶȡǽڻ˾гգгյҪƶȡ
⣬ƷصƶȻǰᵽÿծƶȺͷƶȡ