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

2??????????

3??????????

4??????????

5???????1000

2???????????????????????7????????,???????????????????“?????????????????”,??????????????????

“???????????????????”?????,????????????????,?“?????????,???????????”?????

?????????????“??”???????????,????,?????28.55??????????????;????????;????????????;?????56?,?????56??;???????????????,?????7080???????????????LED????????????????,????120?????????????,??,???,???????????????????,???????,?????????????

(???? ?)

??????????:??????