... 特形光束 shaped beam 锥形光束 cone shaped beam; cone-shaped beam; conical beam; pencil-beam light 锥形光束图样 pencil-beam pattern ...
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lateral conical beam 侧向锥形射束
hollow conical beam of light 空心光锥
shaped-conical beam 赋形波束
conical beam tracing method 圆锥束跟踪法
Beam conical angle 波束圆锥角
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