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词汇
定向天綫
释义
定向天綫
dìng xiàng tiān xiàn
有方向性的天线,在接收机上常作环形,在雷达通讯设备上常作凹面镜形。对某些特定的方向能集中发射或接收无线电波的天线。采用定向天线可以提高通信的效率,减少干扰,改善通信品质,所以被广泛的运用于远距离定点通信、卫星通信、雷达等方面的工作。
定向天线
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antivoice-operated transmission
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antivoid valve
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anti vomit agents
anti-vomit agents
antivomit drug
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antivortex
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antivox control
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antiwander rib
anti wander rib
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更新时间:2026/9/29 10:03:17