????????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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