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Heliometry的音标发音
Heliometry
英式发音：[hi:l'ɪɒmɪtrɪ]
美式发音
(n.) The apart or practice of measuring the diameters of heavenly bodies, their relative distances, etc. See Heliometer.
手打:兰斯洛特
(n.) The apart or practice of measuring the diameters of heavenly bodies, their relative distances, etc. See Heliometer.
手打:兰斯洛特