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.
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