| 摘要 |
<p>In accordance with an example embodiment of the present invention, there is provided an apparatus (10) comprising a first body (12), a second body (14), and a joint member (16), the joint member having supported therein a first shaft (13) and a second shaft (15), the first shaft (13) connected to the first body (12) and the second shaft (15) connected to the second body (14), wherein the joint member is configured to cause or to allow a change in a separation distance between the first shaft (13) and the second shaft (15) upon a rotational movement of the first body relative to the second body.</p> |
