We can then look at uranium 238 which has a relatively low absorption thermal energy range and essentially has no fission cross section which is why we call uranium 238 a fertile atom.

我们能看看铀238，它有一个，相对低的吸收热能范围，基本上没有裂变横截面，那就是为什么我们称铀238为可转换核素。

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This paper presents the absorption spectra of carbon monoxide measured by terahertz time-domain spectroscopy in the frequency range between 0. 2 and 2. 5 THz.

文章首次利用太赫兹时域光谱技术测量了一氧化碳气体在0．2～2．5太赫兹频谱范围内的吸收光谱。

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In order to enlarge the applied range of solar absorption refrigeration system, the solar radiation must be compensated for its discontinuation and instability.

为了扩大太阳能吸收式制冷系统的适用范围，必须对不连续、不稳定的太阳辐射进行能量补偿。

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(ASKING) "In fact,the absorption enhancement that we see is in the range of 20 to 50 times the single-pass absorbance."

VOA: standard.2010.02.19

In the wake of this troubling new data about ocean carbon absorption, a range of geo-engineering solutions are being hotly debated in the scientific community and piloted by eco-businesses.

CNN: Topical waters