High performance: the use of LED light source, low energy consumption, long service life, equipped with two 7 high energy battery, continuous working up to 100 hours or more.
高效性能：采用LED光源，耗能少、寿命长，配装两节7号高能电池，连续工作可达100小时以上。
These tunnels have been equipped with the advanced jet and axial shaft ventilation systems, and alarm and monitoring systems. And also a new light source has been employed.
隧道内采用橡胶防水板防渗漏，设置先进的射流和轴流竖井通风系统，配有报警监控系统，采用新光源照明。
Tritium H3 watches are equipped with a tritium light source.
氚h3的手表都配备了氚光源。
Tritium H3 watches are equipped with a tritium light source.
氚h3的手表都配备了氚光源。
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