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

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

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

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

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

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

????????????????,????“???????”??????????,???????????(??)

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

??

??:???????????,??????????,??????????????