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v) lamp voltage 光效(lm/w) rated value 显色指数(ra) cri 寿命(h) rated life t5he
http://blog.alighting.cn/hdhkehui/archive/2009/6/7/3755.html2009/6/7 16:28:00
明系统中的主体，光纤的作用是将光传送或发射到预定地方。光纤分为端发光和体发光两种。前者就是光束传到端点后，通过尾灯进行照明，而后者本身就是发光体， 形成一根柔性光柱。 le
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