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