| 摘要 |
<p>A method of rotating a flipper from a first position about a hinge, wherein an appendage of the flipper is contained within the hinge, comprising: applying a first force over at least a first portion of the flipper such that the flipper rotates about the hinge from the first position; and applying a second force on a second portion of the flipper in a direction opposite that of the first force, said second force being configured and located to reduce or remove pressure of the appendage against the hinge.</p> |
