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ӬBһҪмиѼӣΪܹòϰԴҾһˡ
˻·ʵĶѼСbڣٵĸȣֻǶij˻
˵Ҳ֣СbʶˮĴģŴȥ㣬֮ǰûȻӾ֮ǰΪˮҰġ
ҲҪһ𡣡Ź䲻ðôһ䡣
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yӾˮҵұߵ1.1~1.5ijӣڣԱеĻġм1.4~1.8ijӣŮŮ١ߵ1.8~2.0ijӣ˵ǰӾһҽӣˮȫˮ50ĴȫϺס
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ӬBʾ顣
СbƼͰˮ㲻ϣܳŹ50ģСaȻȥĽѧżӾˣ֮ǰ˵ҪСbֻٴβˡ
ĽôIJã˴Ӿڳر߾ԿԳƵϰķ⣬˴ͷߵͷˮġϵIJŮġеġĿŵϡ
ߵԶˣڰ˶һˮˡ˸˻Ӧ£ӬB缸ӾξͿˣҲǵһκͳһӾ֮ǰʱͲµ϶ҲӾеģڿԷˮгεˣƺӵ÷ӬBЩ
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ðü
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ЩˮصĿ֮ǰˮ˻źⲻһֳˣżɫʱͿ˶ߵľԱǰΪ˱Ǻ;Աȷ̨ܸܲȷûһһվм̨ϡ
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200أ۷ǰ150һֱ£Χ۵ԽԽ࣬ԽԽɵԷվ˶ӣˮ˻
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