其中以昼行灯(DRL)与车头灯(H/L Beam) 等车外LED照明成长较快。主要原因在于LED的技术提升与价格的下跌，使得车用LED照明逐渐从高端车型转移至中端车型上。
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l beam l 形梁
L-beam L 形梁
Jas L Beam 标签
simply supported l-beam 简支工字梁
simply supported l beam 简支工字梁
L-beam 形梁 ; 角钢
James L Beam 标签
useful l beam 有用束流
channel l beam 槽形梁
It investigates the focal switch phenomenon of a tilted phase L-G beam passing through a system with the aperture and lens separated.
研究了相位倾斜l - G光束通过光阑——透镜分离系统的焦开关现象。
The integrated analysis of crack failure for L-B Composite Brake Beam Bar Flange Slab was made by means of SEM, microscope and chemical analysis.
采用残余应力和力学性能测定、化学成分分析、断口扫描及金相检验等方法对铁路货车用l - B型组合式制动梁撑杆翼板产生裂纹的原因进行了分析。
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