关于bulbwillhavebeenb的百科

•  ThomasEdison'sincandescent(白炽的)light-bulbwillhavebeenb...

• 问题详情： ThomasEdison'sincandescent(白炽的)light-bulbwillhavebeenbroughttoanendby2016becauseitusestoomuchenergy.The"greatlighthope"toreplaceitisabulbmadefromlight-emittingdiodes(两级管),orLEDs.Moreefficienteventhanitsgreencompetitor,thecompactflu...
• 2021-05-1817497