(?????)???“B??????”:?????????

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

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

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

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

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

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

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

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

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

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