Oct 30, 2010

LEDは省エネの代表格

LEDは発光ダイオードの略で、電光掲示板や駅構内発射のご案内、信号機、最近ではテレビ受信機やPCのデ
Posted at 12:26 in Laughter | WriteBacks (0) | Edit
Edit this entry...

wikieditish message: Ready to edit this entry.
















A quick preview will be rendered here when you click "Preview" button.