1. (前照灯)光束：Beam center 光束中心,亮区 | Beam of light (前照灯)光束 | Bearing 轴承

2. 光线,光束：beam expander 射束放大器 | beam of light 光线,光束 | beam orifice 射线孔

3. 光束：beam locking 射束锁定 | beam of light 光束 | beam of X-raysX 射线束

4. 光柱：光轴影 melatopes | 光柱 beam of light | 光子 photon

noun

1. a column of light (as from a beacon)

Synonym: beamlight beamrayray of lightshaftshaft of lightirradiation