?? ???30?????????????????
????:1??????????:??100???????
2?????????
3???????
4?????vx
5??????????
??????9??????29????????(???????????? ??)??,????????,???????????????????????29????,?(9????????22???????????28?????)??30???????????????,???4?????????????????
????????????????,????,????????????,????????????,?,?????????,??????X??CT????,??????????????????????RFID??,?????????????????,???,???
?????,???9????????28??????,??????????7.8?,?1053.8?,??61.5%?96.6%????????????????????????,??????9???1???28??????????,?117?????????????????????????,??48.9%?
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??????,????9?????????????28?,??????????2635??????,??12????????????????????????,?????????9?1??28??,???9300??,?17.1%?(??)
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