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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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