短語詞組短語beam spot center 光斑中心beam black center 光束beam center detail 波束中心main beam center 主波束中心antenna beam center 天線波束中心right headlight beam center height 右內心高left headlight beam center height 左內心高right beam center horiz offset 右內水偏beam -based magnetic center 束基磁中心 返回 beam center