If the satellite has an elliptical orbit the result is a spiral wave a miniature version of the pinwheel pattern of our galaxy.

如果卫星的轨道是椭圆的，就会产生螺旋波，就像是银河系纸风车形状的缩影。

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High efficiency and high linearity space traveling wave tube (TWT) is required for satellite communication system as a high power, high gain microwave amplifier.

作为卫星通讯系统所用的高增益、高功率微波放大器件，行波管的效率和线性是非常重要的。

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It expounds the skill and two methods of the feed's reception of various polarization waves and the line polarization feed's reception of satellite sending line polarization wave.

阐述了圆极化馈源对各种极化波的接收和线极化馈源对卫星发射线极化波的接收两种方法、技巧。

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Computer-literate Saudi citizens, already spoilt for satellite choice, are about to be swamped by a wave of imported material on the Internet.

ECONOMIST: Saudi Arabia

It was also interesting to note a growing wave of amateur space enthusiasts who are creating open source satellite and guidance plans and software and even making their own back-yard rockets!

FORBES: Private Space Transportation Reaching New Heights

"Constantly we are monitoring weather forecasts to keep in line with the sun, plotting our route, examining wind, wave and current predictions, communicating with other vessels on the satellite phone, updating our blog and logging our positions, " he said.

CNN: STORY HIGHLIGHTS