| 摘要 |
<p>The container has a cover (2) to cover an upper part of a case (1). Cover`s circumference is in the form of an edge (8) that covers a collar (7), which constitutes an extension of case walls. Inner surface of the edge is coupled with external contour of the collar, in a sealed manner to use air confined under the cover during its closure. Another edge (6) acting as seat for the cover assures junction between a belt and the walls.</p> |
