... luminosity class 光度级 luminosity classes 光度型 luminosity classification 光度分类 ...
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一个完整的MK系统代号包含光谱类型和光度型两部分——例如，太阳属于G 2 V类恒星。
A complete MK designation includes both spectral type and luminosity class -for instance, the sun is a G2V.
介绍一种检定960型荧光分光光度计波长准确度及重复性的新方法。
A new test method for wavelength accuracy and repeatability of model 960 fluorescence spectrophotometer are introduced.
本文介绍紫金山天文台直流积分型光度计。
This paper describes an integrating photometer built at Purple Mountain Observatory recently.
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