?? ???????????50??? ??“??????”
![](https://image.chezhanri.com/2019/0305/20190305173248688.jpg)
????:1???800??????????:?????
2?????
3??????
4?????
5??????150???
7??????????????4??,??????????????????????,?50????????,????“????????????????????????”?????????????,????????????
“??”?,??????????1998????????????????????????????????????????????????? CCD???“1998QJ5”(???)???“??????????”????140???,????4.47???????????????????,???????6????,????????2.1???????????
?????,??????????????????????????????,?,???????????????????????222?????????????????????????????
?,??????????????,??????????????????“???????????????”??????,??????????????????????,???????????????(??? ?)
???:????????