此图像被经过彩色编码处理以显示天空在普朗克观察频段范围下的样子。
The picture has been color-coded to show how the sky looks over the range of frequencies observed by Planck.
绝大多数无线通信系统都要求对相邻频段的用户产生最小的干扰，也就是必须在所规定的频段范围内传送信号。
Most of the wireless communication systems are required to achieve least adjacent channel emissions and high bandwidth efficiency, that is to say signals must be transmitted in a limited band.
两种方法所测得的剪切波速数据具有很好的一致性，且在数赫兹至数十千赫兹频段范围内剪切波速不具明显弥散性。
Shear wave velocity data measured by these two methods appeared to be good consistency and no obvious frequency dispersion was found from a few hertzs to tens of kilohertzs.
该无线电系统还可扩展频率范围，提供低频段甚高频。
The radio also has an extended range that provides access to low-band VHF.
并且，Wi - Fi信号传输约100米后，就渐渐消失，与之相比，空白频段信号传播范围则可能为几千米。
And whereas Wi-Fi signals Peter out after 100 metres or so, their white-space equivalents could have ranges of several kilometres.
国际电信联盟保留了1400- 1427MHz范围内的特殊无线电频段，亦称L -频段，特别供地球探测卫星和太空天文使用。
The International Telecommunications Union reserves a special radio band in the 1400-1427 MHz range, called the L-band, especially for Earth-observing satellites and space astronomy.
根据外空扰动重力与地面数据分辨率及其覆盖范围之间的关系，将重力异常分成不同频段、不同分辨率，分别计算了截断误差。
From the relation of spatial disturbing gravity and ground gravity data resolution as well as its scope, truncation errors are computed by dividing the gravity anomaly into frequency and resolution.
在未来的多频段和多模式的无线/移动通信中，对于具有宽调谐范围的射频有源滤波器的需要将极为紧迫。
There are pressing needs for RF active filters with wide tuning range for use in multi-band and multi-mode wireless/mobile applications.
肉眼见不到的隐身衣虽然在光波频率范围内能够实现隐形，但是用其他频段的电磁波还是可以探测到。
Although the naked eye can not see the light of the troubles within the frequency range can be achieved stealth, but the other band can still detect electromagnetic waves.
带通滤波器经常用于抗干扰设备中，以便接收某一频带范围内的有效信号，而消除高频段和低频段的干扰和噪声。
Band-pass filter often used in anti-jamming devices, in order to receive a valid signal within the band, while the elimination of high frequency and low frequency interference and noise.
本文介绍一种L频段安控系统，它由“三站一中心”组成，用三站无线接力的方法来提高覆盖范围并解决地球曲率对通视的限制。
An L-band safety remote control system is introduced which is composed of three stations and one center in order to increase coverage and overcome the limit of earth curvature to intervisibility.
本文介绍一种L频段安控系统，它由“三站一中心”组成，用三站无线接力的方法来提高覆盖范围并解决地球曲率对通视的限制。
An L-band safety remote control system is introduced which is composed of three stations and one center in order to increase coverage and overcome the limit of earth curvature to intervisibility.
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