en photometrograph (n)
― RelatedTo ⟶
Weight: 1.0
en instrument Source: English Wiktionary
en photometrograph (n)
― RelatedTo ⟶
Weight: 1.0
en record Source: English Wiktionary
en photometrograph (n)
― RelatedTo ⟶
Weight: 1.0
en daylight Source: English Wiktionary