本文着重分析了D310转向照地灯的结构特点、光照范围等技术参数，总结了弯道照明的特性特点，为弯道照明灯具的法规制订提供了实践数据。
This paper analyses the technical parameters of D310 Down-Corner Lamp on the structure and lighting range, and it also summarizes the bend lighting lamp's features.
综述汽车前照灯的组成、用灯方式、光学特性、配光特性。
The composition of the automotive head lamp, lamp application methods, optical characteristics and the characteristics of light distribution are discripted.
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