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            ??????豸?????

            ?????????2011-08-09 10:12 ?????????

            ?????? ????????????????????????????????????????????豸?????????????й??????????????...

            ????????????????????????????????????????????豸?????????????й??????????????
                ????豸????л??塢????????е???????????????????????
                ????????????????????????????壬????3-5mm?????400-600mm?????800-1200mm??????????????????????????????????????????????????????????
                ??????壺??????????????????????????ɡ???????????????????????????????????????????????м???????????????????????????????????????????????壬?м???????????????????????????????????????У???????????????????????????????????30-50mm??????????γ??ν???????壬???????????????????????????????????????????????????????????????塣
                ???????????????????????????????????е??λ???????й????????????????????????????5-8mm???????0.5-0.7m/s????????????????????????????й??

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