Infrared sources of jet propulsion systems were analyzed and their suppression techniques were discussed in this paper.

本文分析喷气动力装置的红外辐射源，并讨论抑制红外辐射的技术途径。

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The vast majority of these infrared extended sources are galaxies.

这些红外光源绝大部分都是星系。

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Near infrared Photometry of 39 stellar maser sources of different types is presented in this paper.

本文给出了39个不同类型的恒星脉泽源的近红外测光结果。

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This frigid state is required for the instrument's detectors to sample the faintest of infrared sources.

BBC: Science & Environment