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lumen second

el. 流明・秒［光能量单位］
lumen-second [ˌluːmɪn'sεkənd]
gen. 流明-秒光能单位
auto. 流明-秒
oil 流明一秒
tech. 流明秒
 English thesaurus
lumen-second [ˌluːmɪn'sεkənd]
tech., abbr. lm⋅sec
lumen- second
: 3 phrases in 3 subjects
Aviation1
Electronics1
Space1

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