?2???????28??????
??????2????????21??? (??????????????????? ??)??????21?????,????2??????28????????????,???????
?,????????,????31.1??,?“?+?????????”?????,???????????,?????,?????????????????????17.8?????????

2024??????????12?????????????11??????,?,???????????????,????,???,???,???????????33????????????????/??????,???????13.3?,??????,???????????????0.6????????????/??
???????JT/T489-2019??????1?4??1?1.5?2?3,1?????????6??1?2.1?3.16?3.75?3.86?4.09,?????,??6????,????,?????0.17????????
???,???????30??,??,??????????????????“???????????????????????????????”????????????
??,???“?????”????????????????????,?,????2?,?????????????????2???????????2?????????(?),????3.32???
????,????“????”????,?????????,????????????????????????150?????(????????????????)

??