?????????????

????:51????????:????

?6?24?? ?????,??6??24??????????10????:

6?????????????17????,?????????????????,????????????????200~400?,???????500~713??????????????????,6?????24???????????27???????,??????????????????????,??,?????????????????????????????????????????????????,????,????????????????????

6????24??14??25????14??,??????????,???,???????????????????????????????,????????????????(250~270????)??????(?20~50???????????,??????????????70?),???

??????????????:????