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

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

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

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

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

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

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

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

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

???“????0.5????”??

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

??:??????????? ??“??????????”????

?? (???)??????“B?????”:?????????

????:1???????????:??????wx???

2????????????

3???24????

4??????????

5???????qq????

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

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

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

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

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

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

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

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

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

???“????0.5????”??

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

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