????:1????????????:????????800

2??????

3???????????

4????????????

5??????????

????????????????6???27???? (?????????? ?)?6???30??????????15????????????????27??????????????????????,???????????????????;???????????????????????????,??,????(??????????)??

????????????????,???????????????????????«????????»,????????,????66???????????????????????/????????

?????????27????? ?? ??

??,?(????????)?????????????37????/????????????23?/???????????????????????(??????)??6????????????/??;1????????????????4????????????1?1.5?2?3,?3???????????????????????????????4?????????????60%?;1??6??1?2.1?3.16?3.75?3.86?4.09,??????????????????

???????????????,??????,??7?????????????“????”???ETC??95?????

??,??????????????????????????????,??????24??????,??????????

???????????,???????????????????,???????????;????????????,???????????????????????,??????,???(????????«?????»(JT/T 4892019)???:??????(?????????) ?4?,?)???

??,?,??????

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

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

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