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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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。

youdao