?? ??????????????
![](https://image.chezhanri.com/2020/0408/9552b6917f2a3a53196bd29e18820269.jpg)
????:1?9598?????:??????
2??????
3????????????
4????????
5????????????
?????????,??????,?,?15??????,??6????????????????????????,??????
?????8???16???????18?,?40.89????????,????????????8???15?0.05?????????,?0.77????????????,????0.37?,??????????0.69??
??? ????????:???????????????,?????????????????,??????????????????,????????????????????????????40~80??????????????,?1.5~3??????????????
??????,???20???????
??????????????? ?:?????????,???,??????,?,????
?,????????????,???,24???,???? ??????????????????:??????????????