A low resolution spectrometer is designed for use at the Cassegrain focus of the LAMOST 4-meter telescope.
针对大天区面积多目标天文望远镜的要求，提出了一种低分辨率光谱仪的设计方案。
An analyzing method is introduced for accurate measurement of deuterium abundance in the hydrogen-deuterium system by low resolution MAT253 mass spectrometer.
介绍了用低分辨MAT253质谱计准确测量氢-氘体系中氘丰度的分析技术。
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