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symmetrical antenna
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symmetrical antenna
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工学
【长、中、短波天线】
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symmetrical antenna
对称天线
在馈电点将天线分为两半,这两半的几何结构形式和尺寸完全相同的天线。如菱形天线、鱼骨形天线等。反之,则称为不对称天线。
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multi-canonical embedding
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multicast area border router
multicast area border router, MABR
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更新时间:2026/8/17 12:01:38