?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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