??>>??

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

2025-02-22 00:21:56 | ??:????
???

??

??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???????????
(??:admin)

????????