法兰件，所述法兰件与上部接合部件联结以便支撑旋转调节部件；

A first joint pipe extending downward from the rotation regulating component and a display mounting component.

youdao

法兰件，所述法兰件与上部接合部件联结以便支撑旋转调节部件；

A first joint pipe extending downward from the rotation regulating component and a display mounting component.

youdao