????“‘4S’????????”??????

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

????????????????????????????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?,????????????????,?????????????????,????,??????(??)

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