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????????????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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