这是因为光源越广，射在物体上光线的方向就越多，这会起到增加场景中的照明、减少阴影的作用。

This is because, with a broad source, light rays hit your subject from more directions, which tends to fill in shadows and give more even illumination to the scene.

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当发动机关闭，辅助功能，如动力方向盘、空调、照明、保持不因为这都是这种电动由电池。

Whenever the engine is shut down, auxiliary functions, such as the power steering, air conditioning and lighting, remain unaffected because these are electrically powered by the battery.

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最后总结全文，提出弱对比、暗景观的景观照明的设计概念，分析其应用方法，并提出了今后进一步进行深入研究的方向和侧重点。

At the end, I bring forward the design concept of weak contrast and dark landscape, analysis the appliance of the concept and advance the direction and emphasis of further research.

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