| 摘要 |
<p>This invention provides a device comprising a housing with an opening at its corner, defined by a first and a second sidewall and a top wall, the first sidewall comprising a first slope; a lid to seal the opening, comprising a first, a second, a third and a fourth edge, the first edge comprising a second slope corresponding to the first slope, and the third edge comprising a first tab; a fastening means to fasten the housing and the lid to one another; and a sealing layer to seal the housing and the lid. When the lid is fitted to the housing, retaining forces along 3 orthogonal directions are generated simultaneously.</p> |
