| 摘要 |
An apparatus comprising a shaft, a member and a lever coupled with the member, wherein a sloped portion of the lever is in contact with a first end of the shaft. A second end of the shaft receives applied pressure and, as a result of the applied pressure, moves along the sloped portion of the lever to apply a force to the lever. The sloped portion of the lever receives the force and, as a result of the force, the lever deflects to pull the member a distance along the axis of the member.
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