| 摘要 |
<p>Accordingly, this invention provides a device (1) for filtering objects by size. The device comprises: (i) a supporting structure; (ii) a frame (2) enclosing a space and attached to the supporting structure; and (iii) at least one elastic member (3) provided with at least one hole, the elastic member being attached to the frame. The frame is arranged so as to rotate with respect to the supporting structure, in use.</p> |
