overheadsn.企业运营的一般费用（如房租、电费等）overheadn.经常开支；普通用费adj.高架的；在头上的adv.在头顶上；在空中；在高处[计算机] 总开销.overhead conveyor高架输送器,高架式输送机overhead traveler桥式起重机, 桥式吊车overhead expenses间接费用overhead bit rate头信息overhead position仰焊位置overhead isolator杆架隔离开关overhead conveyer架空输送机overhead catenary接触网overhead lighting顶部照明overhead caulking顶部边盖