When a conflict is detected, they switch to a backup slice of unused spectrum on the fly.

一旦冲突被检测出来，它们可即时切换到未用频谱的备份频段。

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The switch to all-digital TV has released chunks of broadcasting spectrum for other uses.

全数码电视时代的到来为电视广播在其他方面的应用敞开大门。

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It is shown that the spectrum may be red-shifted and blue-shifted in comparison with the source spectrum, and the spectral switch may also take place.

前散射光的谱强度相对源光谱可能有红移和蓝移，某些条件下还会产生光谱开关。

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For the time being, the touted 4G service will come courtesy of Clearwire's WiMAX network, but FreedomPop says it will switch to Sprint's LTE spectrum sometime in early 2013.

ENGADGET: FreedomPop's pay-as-you-go data service launches in beta, offering 500MB of free WiMAX per month

The switch to all-digital TV has released chunks of broadcasting spectrum for other uses.

ECONOMIST: America is finally poised to get mobile television

And new innovations such as printed circuit technology and the white space radio spectrum (transmitting data over unused TV channel airwaves as we switch from analogue to digital TV) are all helping to create a world where everything can talk to everything else, and everything to us.

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