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流明-秒
auto. lumen-second
流明秒
space lusec lumen-second
tech. lumen-second
流明・秒[光能量单位]
el. lumen second
流明-秒光能单位
gen. lumen-second
流明/秒流明为光通量单位
avia. lumen per second
流明-秒: 2 phrases in 2 subjects
Electronics1
Oil / petroleum1