beamishadj.春风得意的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 of light transitor光束晶体管beam current modulation束电流调制beam plank construction梁板结构beam - hoisting crane提梁起重机beam-climber guidance驾束制导beam current limitation束电流限制beam compression factor波束压缩因数beam current adjustment电子束电流调整beam-and-slab floor梁板楼盖beam field construction梁场建设