en talbot (n)
― RelatedTo ⟶
Weight: 1.0
en lumen second Source: English Wiktionary
en lumen second (n)
― RelatedTo ⟶
Weight: 1.0
en si Source: English Wiktionary
en luminous energy (n)
― RelatedTo ⟶
Weight: 1.0
en lumen second Source: English Wiktionary