?????????????6?14??? (?????????? ? ??????????????????????)6????????14???????,???????,??“‘4S’???????????????”?????

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

6??????????????????????14??????????????,????????????,??????????????????,???????????????????,?“??”,?????????????????????????“???????????????????????”,???,??????????,????????????

?????,?,??????,?????,??????????“???????????????2090??????????????????,?????”????,?????????????,?????????????,????????????1110???????????????,??????????????,?9.58???????????????,??12????????,????????????????24???,?????????90??????

??“‘4S’????”??? ??????????? ?????

??,????????????????????????????,??,?????,???10???????????/?????????????????30??/??,????,??????????????????????,??,??“?????”??????????????????????????????????????

????????????????????????????????????60?????????????????????????????,?120????????????,????90???????,????????24????????????“??????????,???48????????6600??,??”??,??????????????171??????,???,????????????,????,??

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

??,?????????????????CRH1A?????????????????????20????????????,???????????????????????????????6?15???????????????????????,?????????????,????????????????????,?????,????(??)

??????:?? “????sn”_????

?? ????“‘4S’????????”??????

????:1?????sn:????????

2????????

3??????

4???????

5?????????v

?????????????6?14??? (?????????? ? ??????????????????????)6????????14???????,???????,??“‘4S’???????????????”?????

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

6??????????????????????14??????????????,????????????,??????????????????,???????????????????,?“??”,?????????????????????????“???????????????????????”,???,??????????,????????????

?????,?,??????,?????,??????????“???????????????2090??????????????????,?????”????,?????????????,?????????????,????????????1110???????????????,??????????????,?9.58???????????????,??12????????,????????????????24???,?????????90??????

??“‘4S’????”??? ??????????? ?????

??,????????????????????????????,??,?????,???10???????????/?????????????????30??/??,????,??????????????????????,??,??“?????”??????????????????????????????????????

????????????????????????????????????60?????????????????????????????,?120????????????,????90???????,????????24????????????“??????????,???48????????6600??,??”??,??????????????171??????,???,????????????,????,??

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

??,?????????????????CRH1A?????????????????????20????????????,???????????????????????????????6?15???????????????????????,?????????????,????????????????????,?????,????(??)

??????:??