?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??????(??)

??