通过傅立叶红外光谱和氢核磁谱（1H NMR）测试表明所合成的丙交酯和乙交酯具有环状结构。
The resulted D, L-lactide and glycolide were found to have ring structure by fourier transform infrared spectrometry and proton nuclear magnetic resonance(1H NMR) spectrometry.
利用AOTF红外光谱检测仪分别对苯、异丙醇气体进行光谱测试，扫得谱图的吸收峰位置与傅立叶光谱仪的结果基本一致，分辨率水平还有待于进一步提高。
The spectrum peaks of benzene and isopropyl alcohol gas collected by AOTF infrared spectrometer were consistent with the results gotten by FTIR, however the resolution should be improved.
傅立叶变换红外吸收（FTIR）的测试结果表明：微晶硅材料存在着自然的不稳定性，表现为氧含量随着时间的推移而增多。
The results of FTIR indicate that microcrystalline silicon exists instability, and the oxygen content increases with the process of time.
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