| 摘要 |
An adapter includes a base having an aperture extending therethrough. A wall extends upwardly from the base, wherein first and second opposing ridges are disposed on an external surface of the wall adjacent a lower end thereof and first and second opposing elongate ribs are disposed adjacent the first and second ridges, respectively. A plurality of outwardly protruding stop members are disposed on the external surface of the wall above the first and second ridges and elongate ribs.
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