The body has a portion defining an engagement hole into which the free end portion projects to engage the wall of the engagement hole when the cover closes the body, and from which the free end portion projects out of {HEAD ~ the engagement} with {TAIL ~ the wall} when the cover is moved in the opening direction 
with
The body has a portion defining an engagement hole into which the free end portion projects to engage the wall of the engagement hole when the cover closes the body , and from which the free end portion projects out of { HEAD ~ the engagement } with { TAIL ~ the wall } when the cover is moved in the opening direction
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