这听起来有些复杂，其实很简单，举例说明：如果你将光源至被摄主体的距离增加1倍，那么落在主体上的光线只有距离增加前的四分之一。
That sounds complicated, but isn't really. If you move a light twice as far from your subject, you end up with only one-quarter of the light on the subject.
这是非常宝贵的预览当组成的复杂的场景，可能通常结合多种不同的颜色温度的光源。
This Preview is invaluable when composing complex scenes that may typically combine multiple light sources with different colour temperatures.
它还采用了视觉系统，包括在其头部广角摄像机，还有一个摄像头和光源的手腕越来越近距离欣赏复杂的任务。
It also utilizes a vision system that consists of a wide-angle video camera in its head, along with a camera and light source in its wrist for getting close-up views of intricate tasks.
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