... projection light 投射光 projection light source 投影光源 projection line 投影线 ...
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light source projection equipment 光源放映设备
the projection of light source 光源的投影
projection light source
投影光源
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Because of brightness and directionality, laser has become into an excellent projection light source.
由于激光的高亮度和极好的方向性，使之成为非常理想的投影光源。
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When combined with a suitable light source and projection optics, the array of mirrors can project an image.
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