(?????)?????????“B???”:??????
????:2025-01-21 23:51:22 ??:????
????:?????:????????
????????????1?21?(????? ? ??)“???????????????????50mm/s,?????????3°??5°,??2-5N?????????????????????????……”1????????????????????????21???,??,????,?????,?????,?????????????
????????“?????????”,??????????????“???????????????”?????“????”????????????????????“?”?????????,?“????”“????????????”“????”“??”“????????????”??????????“?”????????????????????????,?,??
???? ???? ???????
?????????????“90?????????????”,?????????“?????????”10?“???????”,??????,????“B???”,???????
9???????,??,??????????,??????????????,???????????,?????,??????????????,???????“?????????????????????????????”???????????????????,???
?????,???????????????,??,?“??”??“???”?
“????,??,?????,????????????,???????????????????,??,????????,??????,????”??
????????????????????????????????????????,???????????10000?????????????,??????????????“??????”,????????????“??”?
??,????????16??????,?????????????????134???????,???????465???????
?????“??????????0.5??????????????????????????”???????
?,????,????????????????250?????????????,??60????,????????????100%?(?????????)
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