2?7??????????,??,????????,????,????,?????????,???????“???????”????????????????????,????“??”,?????????
????,“??????”?????????LED??????????????,????,????????????????????,??,????
????????????1984???????1994??,?????????
(?????????????? ????)
?????????????:?????????
?????15?!?????????????
6???????????????????
??:“??”????????????????
?????????:??????10????
?????????:????????????
?????????:IPO???????PE??
?????????7???????????????
????K?!??????!????????
??????????????:??????????
????????!?????????4???
?????????:??????10????
????:????????????3????????
????-?????????????16?
?????:10????????????
?????????:????????????
??????????????????34??
????????????????????
?????????????????????
??????????????50?????
????????????????????
409????!32??????????????
???:??5?????????6000???
?????2??7??????????
???????????????????
???????????????????