????????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??????(?????????????) ????????:??