It was proved that xenon arc is an ideal artificial light source.

经试验分析的结果，氙灯的确是一种理想的人工光源。

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The system is heavily reliant on the availability of sunlight, and for critical tasks or areas a back-up artificial light source is required.

此系统对阳光有很强的依赖性，对于一些极端的工程或地区，需备有备用人工光源。

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This mode attempts to adjust the camera's white balance to compensate for the loss of color underwater without the need for an artificial light source.

这个模式是通过调整白平衡来弥补水下色彩的丢失而不需要人工光源。

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