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。

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.

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结果表明，对不同氘丰度的气体样品，单次测定的相对标准偏差好于0 2 % ，氘丰度测量值在0 2 %的误差范围内是可信的。

The results indicate:relative standard deviations are better than 0.2% for gas samples of different deuterium abundance. Measure value is believable in the error range of 0.2%.

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气体浓度光学分析方法具有测量范围宽、精度高、非接触在线测量等优点。

The optical analysis method of gas concentration has advantages of large measurement range, high precision, untouched on-line measurement and so on.

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And again there, too, you saw an experimental result you were presented with that says, well at least to the extent that it could be measured, it was obviously getting very small.

再一次，你看到了一个,你经知道的实结果，至少在实验测量的范围内，对理想气体条件下的气体这一项很小。

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