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

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

??1984???1994????,?????

(???????? ??????????)

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

??“??????????”

?? ?????????????????? “????”“????”????

????:1???????????:????95??

2??????????

3???95?

4??????

5?????

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

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

??1984???1994????,?????

(???????? ??????????)

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