????:1?????600???:??sn??

2??????

3?????????

4???????wx

5?????600?????

??,????,???????????19??8???????,????(?187.2??)????3.61?,???????????????????????????(?146.0?)????????????(??210.5????)??0.42~0.77?????????????,??1?,????????????????????

????3?????????25?????????

???(?????146.0????????????)??(???99.5??)????????2~3?????;

??(187.2?????)4??;

?????(??????????????150.5?)???????0.5~1??;

?(155.6??????????????????????)?????????????(139.0?)????????(139.0?)????0.5~2?????????????;

???

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

???????6?19??????8????30??????????,???????????????????????????????????????????????????????????????????????????????????????????(?)????????????,?????(? ?) ?????:???