lumen-hour 的定义
Optics.
- a unit of luminous energy, equal to that emitted in 1 hour by a light source emitting a luminous flux of 1 lumen. Abbreviation: lm-hr
更多lumen-hour例句
- So here I am in my requisite Lululemon pants, grunting along to an old hip-hop song at a most ungodly hour.
- An hour later, he scored a second flight to Johannesburg for $380.
- He was released within the hour without a bond on his own recognizance.
- The child almost died from the delay of an hour in seeking help.
- Her phone rings at least once an hour with questions from journalists, which she answers in Arabic, English, and sometimes French.
- The night wore on, and the clock downstairs was striking the hour of two when she suddenly awakened.
- The sound of my step shall make your heart jump; a look from me shall make you dumb for an hour.
- Words are often everywhere as the minute-hands of the soul, more important than even the hour-hands of action.
- After an hour, however, he reached this decision: He would not go to or call up Mrs. Merley.
- It was the darkest hour of twilight, when there was just enough of gleam from the lurid sky, to shew the outline of objects.