Each support member comprises a curved lower surface (146) and a rolling element (148) located within a recessed portion of the lower surface of the support member.
每个支承构件包括弯曲的下表面(146)和位于支承构件的下表面的凹进部分内的滚动元件(148)。
The pointing unit is designed to enable a mouse pointer to move on a monitor screen depending on the extent of sliding of the pointing unit along the curved surface of the support unit.
本指针装置根据其沿曲面支撑装置的曲面进行滑动的程度，可使鼠标指针于显示屏上进行移动。
The pointing unit is designed to enable a mouse pointer to move on a monitor screen depending on the extent of sliding of the pointing unit along the curved surface of the support unit.
本指针装置根据其沿曲面支撑装置的曲面进行滑动的程度，可使鼠标指针于显示屏上进行移动。
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