Conversion efficiency and pulse wave-forms will be affected by many factors due to the wide spectrum range and high intensity density of ultra-short pulses.

由于超短脉冲具有较宽的光谱范围及较高功率密度，倍频转换效率和谐波脉冲波形将受到许多因素的影响。

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In a line scan defect inspection system, the illuminator properties, such as brightness, light array linearity, lifetime and spectrum range, are more critical.

在线扫描缺陷检测系统中，对光源的亮度、均匀性、直线性、寿命、光谱范围都提出了较高的要求。

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Making use of the fabricated bandgap-type photonic crystal fiber, the influence of the interstitial holes on the photonic bandgap is analyzed and the spectrum range of photonic bandgap is calculated.

结合课题组研制的带隙型光子晶体光纤，分析了间隙孔对其特性的影响，并计算存在带隙的波长范围。

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So, our detection devices are a little bit limited here today, we're actually only going to be using our eyes, so that means that we need to stick with the visible range of the electromagnetic spectrum.

我们今天所有的探测仪器十分有限，实际上我们要用我们的眼睛来观测，这意味着我们只能看到,电磁谱中的可见光区间。

麻省理工公开课 - 化学原理课程节选

So anything that goes from a higher energy level to 2 is going to be falling within the Balmer series, which is in the visible range of the spectrum.

任何更高能级到2能级2,都是属于Balmer系，它在可见光谱中。

麻省理工公开课 - 化学原理课程节选

McCaw has spent several years assembling extensive bandwidth in the 2.5 Gigahertz spectrum range.

FORBES: Bumpy Transition to 4G Cellular

The freed-up airwaves in the proposal would mostly be unlicensed spectrum with "WiFi-like uses, " but at a much lower frequency than the 2.4GHz and 5GHz bands that WiFi needs today: as the first consistent, unlicensed spectrum at that range in the US, it could create opportunities for longer-ranged, free wireless that aren't even on the table in 2012.

ENGADGET: FCC to vote September 28th on proposal auctioning UHF spectrum, Weird Al might still approve

Autism, more precisely the autism spectrum, is a range of brain disorders that can cause difficulties in social interaction, communication and behavior.

CNN: iReport: 'Naughty Auties' battle autism with virtual interaction