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1. ?????  ?????????·??:

(1)????????е???????????????о,????????????????????,??????????????????????????????????

(2)?????????????????????????????????????????.

2. ?????侫?? 

?????侫?????:(1)????,?????????侫??,??????羫??,????,????,??????.(2)??????????,?紫????????????????????????.(3)?????????????,???????,?????????????.(4)??????μ??????С.????????,???μ???????????????.

3. ???????

(1)???????б??,????????????????????????繫??Χ?????о????С???????????繫??Χ??.(2)???紦????,?????С,??о????(3)???????????????????д???????????????????????????????????????????м????С??????????????????????,???????????0.02mm????.(4)??????б?????????,б??????,?????洦?????0.02-0.03mm????.(5)????????????????????????,???治?????а???,?????·???????????.