(??????)???“B?????”:?????????

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

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

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

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

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

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

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

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

???“???????0.5??????????????”???????????

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