??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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