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

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

??

??:???????????,??????????,??????????????