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- The sun sometimes spoils the propagation of radio waves. 太阳有时会影响无线电波的传播。
- The universe is bathed in a sea of radio waves. 宇宙浸泡在无线电波的海洋中。
- To be guided to a target automatically,as by means of radio waves. 自动导向通过无线电波被自动导向某一目标。
- velocity of radio waves 无线电波速度
- To be guided to a target automatically, as by means of radio waves. 自动导向通过无线电波被自动导向某一目标
- velocity of radio wave 无线电波传播速度
- In point of fact, it is the velocity of light (or any other form of electro-magnetic radiation-such as radio waves) that is the maximum velocity. 实际上,光速(或者其他形式的电磁波辐射-比如无线电波)是最大的速度了。
- Timing an echo of radio waves is the principle on which radar operates. 计算无线电波回声的时间乃是雷达运行所依据的原理。
- But certain stars, called pulsars, give off regular pulses of radio waves. 但有些恒星,所谓的脉冲星,会有规律地发出射电波脉冲。
- The net acts as a sail and is driven by the pressure of radio waves generated by a huge radio transmitter. 这个网在一个巨大的无线电发射器产生的无线电波压力的驱动下,像船帆一样运作。
- Both the quick-algorithm of radio wave reflation are presented in the paper. 本文提出了电波折射误差快速算法及修正。
- Lashing velocity of pump is concerned with nature of air. 泵的抽气速率与气体的性质有关。
- The hare darted off with the velocity of a bird. 野兔像鸟一样快速掠去。
- In 1895, Marconi, Italy and Russia Popov at the same time the invention of radio waves. 1895年,意大利马可尼和俄国波波夫同时发明无线电波。
- Some of them reckon that, besides microwaves, the sky reverberates with the din of radio waves as well. 其中一些天文学家认为,除了微波之外,宇宙还同辐射波的杂音一起发生反射。
- K.G. Budden, The Propagation of Radio Waves, Cambridge, Cambridge Univ Press, 1985. 概述有中译本:王椿年,尹元昭,译,电离层波理论,科学出版社,1983。
- The velocity of light is about 186,000 miles per second. 光速大约是每秒十八万六千英里。
- THE SEPARATION VELOCITY OF RADIO COMPONENTS IN QSO 类星体射电子源的分离速度
- Seyfert galaxy is a spiral galaxy that emits large amounts of infrared rays as well as large amounts of radio waves, X rays, or both radio waves and X rays. “塞佛特”星系是一类特殊的星系,它发射大量射电波、X射线(或两者都有)的同时也发射大量的红外线。
- The hare dart off with the velocity of a bird. 野兔像鸟一样快速掠去。