???????????2????????????12???? (???????????? ????????????)???????????????2???????????11?????17???????????30????????,?(??????:???)?????????????,???(?:??)?????????????????YF-75DA?????????????????,??????????????“??????”?

????????????????,?????,??????????????????????????????????????????4?YF-100?????????,2?????YF-75DA???????????????

??????,??????????????????????????,???????????????,??????????????????,?,??,?????

????????????,???????24????,?,?????????????????????????????????,??,?????????????,??,??????????,???????????,???????????,?????????????????????,???

?,?????????????,?????????????,???????,??????????????????????????,???????????????????????????????????????,?,??????????(?) ????????????????:???? ??“??????”

?? ??“??”??????

????:1???????:???????????

2??????

3???????453??780?

4????????????

5?????????

???????????2????????????12???? (???????????? ????????????)???????????????2???????????11?????17???????????30????????,?(??????:???)?????????????,???(?:??)?????????????????YF-75DA?????????????????,??????????????“??????”?

????????????????,?????,??????????????????????????????????????????4?YF-100?????????,2?????YF-75DA???????????????

??????,??????????????????????????,???????????????,??????????????????,?,??,?????

????????????,???????24????,?,?????????????????????????????????,??,?????????????,??,??????????,???????????,???????????,?????????????????????,???

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