Beacon Light
标志灯
立标灯
航标灯
指向标灯
指标灯
信标灯
陆上标灯
聚芳醚砜
灯标
灯
标灯
(LED) Light Emitting Diode
[endoscopic]cold light source
[laser] light scattering detector
100% low-floor light rail vehicle
1550 nm light transmission of sub-carrier modulate trunk
3rd generation synchrotron light source
70% low-floor light rail vehicles
820 nm light absorbance
90° polarized light beam splitters