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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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