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.
照明并不精确，否则，聚光照亮的圆锥体范围应该是圆形。
The lighting is not exact; otherwise, the cone cast by the spotlight would be round.
大范围开放式享受太阳光照的蝴蝶园是扩充开放式修整草坪的有效替代。
Butterfly gardens in large open sunlit areas may make an attractive alternative to an open expanse of manicured lawn.
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