?? ????????“‘4S’????”??????
????:1???????????:95??,?98???????
2?????????
3??????
4?????????????
5?????????
???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??,????????????????????,??????????????,???????,???(?)
????????????:??????