(??????)???“B?????”:?????????

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

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

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

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

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

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

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

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

???????“?0.5????????”???????????????

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