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????????2???????13?????????????????????????? (???????????????????????????? ??????)???(?)????????13??????????????????????????????,±800??,??

???????????????????????,????????????????????????????????,??????????????????????????????,??26????

2?12??,???????,??????????±800????? ??????

±800???,?2020?6??????????????????????????????30?,???????????????5???,??700??????????????????????????????

????????±200?±400?±600?±800????????????,??????????????????6?????1??????????????????????????????1??????±200??????

?,????,???????????????,???????????????

?,???????????,???????????????????2000?,?????????????

“????????”??????????(??????)

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