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1 ˮԣPEGࡢӲ֬ơ 2 ֬ԣӲ֬ᡢӲ֬⻯ֲ͡ Ʊ
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1ֱࣺ˨˨˨˨ 1 ֱ˨2gͯ1g3-4cm 2 ˨2-5gֱ1.5-2.5cm 2˨ص 1 ֲãͨ㡢ֹֹʹ 2 ȫãֱ3;
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ӲȺԣڶԣ۰ȫԣ ȶԣˮԣޱƱ <0.2200-245<7 һ֬Ի
1 ɿɶ֬Ȼ۵30-35棬ɫ 2 ϳ֬12-18̼֬õһ Ҭɽ 3 ϳ֬Ӳ֬
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