???????7.6????????

???2??????????9?????????????? (????????????? ?????????????)???????????????9???,?2?9????????????????7????????????23????,???????????????7.6???????????????,????????

??????????????????,????,????????????,????????????????????????????????20??????????????????????

?,????????????????10??????????0?(??????????),??????????30????

?,???????7????30?,?,?,??????,???9????????30????????????????(PTWC)????????

????????????,?100????500???,?????3????????????????7.0?,?????????2020????1????27??????????5?????2????7.7???,??5???,?2018??????????7.5??????????,?????4.0??????(????????????) ??:??