?????2?????????????21?????? (?? ????????????????)?????21?,??????2??28?,?????????

?,?,????31.1?,????“???????????+????????????????”???????,?????,????,???????????17.8????

????????????2??????28??????? ?

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???(??????????)

???????????????????:???? ??“????????”????

?? ??????2?28???????

????:1?????????:??????????

2???????

3?????

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

5??????

?????2?????????????21?????? (?? ????????????????)?????21?,??????2??28?,?????????

?,?,????31.1?,????“???????????+????????????????”???????,?????,????,???????????17.8????

????????????2??????28??????? ?

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???(??????????)

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