What we call visible light is really a tiny portion of this whole range, or spectrum.

可见光是其中很窄的一部分，或称光谱。

youdao

To provide an attachment describing the method, conditions, instrument and chromatogram or spectrum diagram to identify the notified substance.

应以附件形式描述用以鉴定申报物质的方法、条件、仪器等，并提供谱图。

youdao

International researches mainly include population estimation from the land cover data, DMSP-OLS night light data or spectrum information directly afforded by the Remote Sensing images.

国外研究主要包括从遥感解译信息反演人口数据、从DMSP - OLS夜间灯光数据反演人口数据和从遥感获取的光谱特征直接反演人口数据。

youdao

Autism is a set of disorders, along a wide spectrum, that affects a person's ability to respond socially or form relationships.

VOA: standard.2010.08.09

So, let's say they were expecting to see one certain frequency or one line in the spectrum at this point here.

比如说他们预计会看到某个特定的频率,或者在这里看到一个谱线。

麻省理工公开课 - 化学原理课程节选

In mid-2011, Google also engaged in advanced discussions to buy rights to the airwaves, or spectrum, owned by wireless operator Clearwire Corp.

WSJ: Google to Fund, Develop Wireless Networks in Emerging Markets

But Cablevision bought the satellite service, or spectrum, years ago, as it was trying to transform itself from a mere cable company into an entertainment conglomerate.

FORBES: Will Cablevision Sell Its Satellite Service?

Network owners say that gives them less reason to upgrade their networks, content providers say many of those network owners rely on access to public rights of way or spectrum--making them subject to regulation.

FORBES: Magazine Article