light beam of finite size  有限束宽光

light source size  光源线度

light spot size  光斑尺寸

light weight and small size  轻小机组

light weight and small size machine  轻小机组

light-weight and small-size  轻小型化

size of light spot  光斑大小

light-light transfer efficiency  光－光转换效率

lightweight Light-Expansion Concrete  轻质微膨胀混凝土

White Light Light-Emitting Diode  白光二极体

anti-visible light and infrared light  防可见光及红外光

breakdown light {NUC light}  故障灯

digital light processing DLP light source  数字光处理光源

high light efficiency light source  高光效光源

Light come light go  来得容易去得快

light draft [= light draught]  空载吃水; 轻载吃水

light output characteristic and the light distribution  大功率LED光输出特性及配光

light pen light pencil  光锥

Light-emitting diode curing light  发光二极管光固化灯