beam lumen
基本解释
- [动力与电气工程]光柱流明
- [机械工程]光柱流明
英汉例句
- Operators can also hold the switch down to run the flashlight in low mode, producing a 50 lumen light beam and a longer 12 hour runtime.
ENGADGET: Explosion-proof flashlight could be the first to outlive its owner - By pressing the switch once, the light operates in high mode to produce a full power 130 lumen light beam with a long 4 hour runtime.
ENGADGET: Explosion-proof flashlight could be the first to outlive its owner
权威例句
专业释义
- 光柱流明
- 光柱流明