The entire length of the tower is equipped with a feeder (a coaxial wave-guide) through which signals are transmitted from the transmitter to the antenna on the spire.

信号传输线(一个同轴波导管)贯穿整个塔身，通过它，信号从传输器运送到塔尖的天线。

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The paper reports that the roaches could skitter, wave their antenna, and even change size fromsmall and medium to hideously large.

该文中报道，蟑螂可以从面前飞过，摆动触须甚至可以将图像从很小一直放大到巨大。

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Taken the Earth as material of antenna for receiving gravitational wave, the Earth behaves as a low-frequency gravitational detector.

将地球作接收引力波的天线物质，地球就成为了工作在低频段的引力波探测器。

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Antenna and wave propagation theoretical background is essential.

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