??
?????????????1?21?????(??? ?? ?????????????????????????)“?????????????50mm/s,????????3°??????????????5°,?????????2-5N?……”1??????????21???????,?????,?????,????,???????????????????????????????????????,?????
???????“????”,????“??”??“??????????”????????????????????????????“????”?????????,??????“??”“???”“??????”“?”“?????????????”?“????????????????????????”?????????,??,???????
????????????? ?? ??“90??????”,?“??????”10??“?????????”,?????????????????????????????,???????“B??????????????”,????????
9???????,????????,????????????????,????????,???,?,??????????????,???????“????????”?????????????,??????
????,?????????,??????????,??“??”??“???????????????????”?
“?????,?,?????????,????????????????,??,??,???????,???????????,????????”????????????????
???????????????????????????,????????????????10000??,????????????????“????”,???????????????“???????????????????”?
????????????,??16????????????,????????134??????????,??465??
??????????“????0.5?????”?????
???????????,??,??250?????????????????,??????60?????????????,????????????100%?(???)
???:????????????????????
?????(??????)?????????“B???”:??????????????????