prefabricated concrete beam (precast concrete girder)
亮度控制
beam control【电子】;brightness control【电】视
暂无补充释义。
相关词条
separated angle of difference beam【电讯】;separated angle of offset beam【电讯】
cross beam
light-beam instrument
multiple beam lateral-shear interferometer
girder【建】;sommer【建】;summer beam【建】
supporting beam for the shuttering form of coffered
beam scanner【核】