... laser beam defletion 激光束偏转 laser beam diameter 激光束直径 laser beam 华夏学习网ergence 激光束发散 ...
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... 激光束记录装置 laser beam recorder 激光束径 laser beam diameter 激光斯塔克光谱学 laser Stark spectroscopy ...
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laser beam diameter measurer 激光测径仪
Diameter of laser beam 激光束束径
·2,447,543篇论文数据，部分数据来源于NoteExpress
Commercially obtained laser pointers project just a tiny beam, but its diameter grows much bigger as the distance increases and can result in temporarily blindness if shone in someone's eyes.
BBC: Man gets 30 months in prison for shining laser at plane
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