We obtain an experimental formula by measuring the standard spectrum of high pressure mercury lamp.

我们用高压汞灯作为标准光谱进行定标，得到了一个非常简单的计算光谱的数学公式。

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The seismic response of the structure with long period will be over estimated, if the standard spectrum or the design spectrum given by seismic risk analysis is applied.

而长周期结构采用规范设计反应谱或由地震危险性分析给出的场地设计反应谱计算所得的地震反应结果偏大。

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In particular, thin cells fail to capture much light at the red end of the spectrum. That means they produce up to 20% less electricity than standard cells of equivalent area.

特别是，薄的电池不能捕获光谱红端的很多光线，这意味着它比相同面积的标准电池少产生20%的电。

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The MPG equivalency rating was developed by the EPA as a way to provide a standard so consumers can compare vehicles across the spectrum and make an educated purchase.

ENGADGET: Nissan Leaf blessed with 99MPG 'equivalent' sticker, roundtable arguments ensue

But the new 4G mobile standard, called LTE, gets the biggest bang for the buck in wider spectrum bands.

FORBES: Damming the Digital River

The governments agreed on a common standard for digital communications, and to enable it they freed a common bloc of spectrum across the continent.

FORBES: After the Budget Deal, How Government Can Support Market Creation, Cheaply