(???)?????“B??????”:?????????

??

??1????????????21???????????(???????? ???? ????????????)“????50mm/s,?3°??????????5°,????2-5N???????……”1??????21???????????????,?????,?????,??????????????,??????????????????????,??

?“?”,???“????”?“??”?????????????????????????“???????”?,???“??”“?????????”“?????”“???????”“?????????”?“???????????”???????????????????,?????,?????

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

???????“90??”,????“?????????????????????????”10?????????????“??”,??,???????“B??”,?????????????????

9??????,??????,?,??????????????????????,?????????,??,??????,?“?????????????”?????,???????????

??,?????????,??????,?????“???????????”????“?”?

“????????,???,?,???????????????????????????????????????????,???????????????,????????????????????????,????????????????????????,????????????,???”?????

????????????,???????????????10000??????????,??????????????????????“??????”,???“??”?

??????????????,?????16????,???134????????,??????????????465???????

????????“?????0.5???????”??

??,????????????,??250??,?????????60???????,?????????????????????????100%?(???????????????????)

?????????????????????????????????:??

?????????

?????(???)?????“B??????”:??????????????

????????