beamedadj.有梁的；照耀的；广播的动词beam的过去式和过去分词形式.beamvi.微笑；发光vt.播送；发射；用梁支撑n.桁条；光线；(光线的)束；(横)梁beam spectrum线束谱beamconfiningn.聚束adj.聚束的beam centroid束流重心beam with joy眉飞色舞beam equation射束方程beam swinging射束摆动beam end boss梁端托圈beam shooting光束枪,紫外线枪beam penumbra束流半阴影beam transfer梁式转换