FAQs About the word photoheliometer

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A double-lens instrument for measuring slight variations of the sun's diameter by photography, utilizing the common chord of two overlapping images.

No synonyms found.

No antonyms found.

photoheliograph => Máy in ảnh mặt trời, photogravure => Kỹ thuật khắc axit, photography => Nhiếp ảnh, photographone => Phát âm, photographometer => Máy đo ánh sáng,