1、Light source with high luminous efficiency, long-life gas discharge lamp.
光源采用高光效、長壽命氣體放電燈光源。

2、It is designed artfully, it is easy to be installed, it has long-life and good security for using.
設(shè)計巧妙簡潔，安裝使用方便，經(jīng)久耐用，安全性能好。

3、How the Long-range Education Acts on Achieving the Long-life Education
現(xiàn)代遠(yuǎn)程教育在實(shí)現(xiàn)終身教育中的作用