???????“????” ???????????

????:????????????:????vx

??2?????????????19?(???)19????????????,????,??????????????????????“?????????????????????????”????????????????????????????????,???????????,??????????“??”?

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

???,????,????“???????”“??????????”“??”???????,??“?????”??????????“????????”?

????????????????????,??2.8??????????????????,????,????JD605??????????????????????“?????????”???,????????

“????????”????,???????????????,???????“???????????”?????????????,??????????????????????,????????????????????,???????????????

?????,?????,???;????????????????,??????????,?????????????,????,??

????,????“??”??,?????(?????????)

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