3325英语网 英语单词
Heliometer的音标发音
Heliometer
英式发音：[,hi:li'ɒmitә]
美式发音
(noun.) an instrument used to measure the angular separation of two stars that are too far apart to be included in the field of view of an ordinary telescope.
编辑:莉莉
(noun.) an instrument used to measure the angular separation of two stars that are too far apart to be included in the field of view of an ordinary telescope.
编辑:莉莉