| 摘要 |
A portable communication device has a plurality of projections formed on one or both of an upper casing and a lower casing; a plurality of through holes formed on at least a printed circuit board, on which various types of electronic parts are mounted, housed in a housing so to allow the projections to pierce through them; and the projections designed to pierce through the through holes of the printed circuit board to fix the printed circuit board between the upper casing and the lower casing.
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