Laser is a new light source.Comparing with ordinary light the laser has good monochromaticity, directivity, coherency, high brightness, high power and high energy etc.
摘要激光是一种新型光源，激光与普通光相比，具有很好的单色性、方向性、相干性和
亮度以
率、能量等特点。
词Laser is a new light source.Comparing with ordinary light the laser has good monochromaticity, directivity, coherency, high brightness, high power and high energy etc.
摘要激光是一种新型光源，激光与普通光相比，具有很好的单色性、方向性、相干性和亮度以率、能量等特点。
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