| 摘要 |
An actuating element for controlling an electronic device is provided. The actuating element including a front cover having an actuating surface to be actuated by a user and a support structure adapted to be coupled to the front cover. The support structure having guiding rips that guide the movement of the actuating element in a housing upon actuation of the actuating element. The front cover having centering shoulders that contact the guiding rips for positioning the support structure relative to the front cover when the front cover is coupled to the support structure.
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