beamyadj.光亮的；船身宽的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 punch梁开洞beam truss桁架梁beam blank轧制工字梁用的异形坯beam sides梁侧面beam array定向天线阵beam phase束流相位beam switch束开关beam former射束形成装置beam barrel轴筒beam sourse束源