?? (????)??????4×7.5??????:?????? ?????
![](http://n.sinaimg.cn/news/transform/200/w600h400/20180915/KNOQ-hkahyhx0936659.jpg)
????:1???????????:????????????
2???????
3??????????
4????????
5?????
??? ??????? ?
??????
(?????)?????U?????????
![](http://i2.chinanews.com.cn/simg/hd/2025/02/13/44aca122e64944ee93dd737f3a8eb86e.jpg)
![](http://i2.chinanews.com.cn/simg/hd/2025/02/13/70df4d6fbcaf4538b3cf86c080ef86d0.jpg)
![](http://i2.chinanews.com.cn/simg/hd/2025/02/13/1b5c9191968d44deb49a1e6352354c80.jpg)
![](http://i2.chinanews.com.cn/simg/hd/2025/02/13/8e3178ca41ef4f938fa3300ae8f4bc14.jpg)
![(??)?4×7.5??????:???? ????](http://i2.chinanews.com.cn/simg/hd/2025/02/13/200x133_27c0df110a894451a14172b0b40d8593.jpg)
??????
??????![????????????](/fileftp/2022/06/2022-06-07/U719P4T47D50347F24534DT20220607152528.png)
![???????????????????](/fileftp/2022/06/2022-06-07/U719P4T47D50348F24533DT20220607153442.png)
2??13??????,?????4x7.5????,??,??????????????
???:???????
?? ??