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containing
锥形 射束
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in specified order only
Subject
Chinese
English
tech.
灯光
锥形射束
cone of light
tech.
锐
锥形射束
天线
pencil-beam antenna
space
锥形射束
conical beam
telecom.
电波
锥形射束
pencil-beam
tech.
锥形射束
conic beam
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