“occulting bar”的概念、定义、翻译、参考文献-科学参考

单词	occulting bar
释义	occulting bar [ǝ`kǝlt·iŋ ´bär] ^ASTRONOMY A bar placed in the focal plane of a telescope eyepiece to cover part of the field of view, usually to cover a bright object in order to permit observation of a nearby faint object.
随便看	EDM Edman degradation technique EDP EDP center Edrioasteroidea Edser and Butler's bands EDTA EDTC educational age educational psychology eduction eductor eductor pump edulcorate EDVAC Edwardsiella Edwards' syndrome EDXD EEG eel eel grass EELS EEP EEPROM eff

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