negative focusing
... negative fixation 消极性固着 negative focusing 负聚焦 negative hallucination 负幻觉 ...
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从几何光学理论证明了,在左手系材料(负折率材料)透镜中存在完善聚焦的概念。
The perfect focusing concept is proposed in lenses made of Left handed materials (or negative index materials) by means of geometrical optics.
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