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Cбϳeصĺ̎ ÷Cбˮ̎̎ʲô бܳeؾгeЧʸr(sh)gռٵL̎\(yn)ڳˮijغСI(y)Uˮĸ͵A(y)̎M(jn)̎ð(wn)o(h)Ҳ ʲôˮ̎Ķعˇк÷Cбϣ CбϺ\(yn)ˮ...
÷Cбϳصĺ̎ʲô ÷Cбϳ̎ƽʽص 3-5 ٳغ}_ص 2-3 ֱֱҪVغؓ(f)VʽV͛]ʽVأַQ|أԼD(zhun)Pdw(du)I(y)ЙC(j)UˮͳˮM(jn)̎ Cб ...
Cб bʽf 35mm Ƭ0.5mm 1 40Ƭ 50mm Ƭ0.5mm 1 30Ƭ 80mm Ƭ0.5mm 1 20Ƭ Cб b 35̖(ho) 40Ƭ/ 50̖(ho) 30Ƭ/ 80̖(ho) 20Ƭ/
CбЩ̖(ho) Ҏ(gu) mm Ƭ mm ȱe m 2 /m 3 ϶ m 2 /
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