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

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

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

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

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

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

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

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

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

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

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

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