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

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