| 摘要 |
A cup-shaped body (1) comprises a circumferential wall (2) and a first end wall (3). The first end wall comprises a deepened portion (4), forming a first recessed space (5). The first end wall further comprises a projection (6) protruding from said deepened portion into said first recessed space. The body is formed such that identical specimens (1, 1A) of the body are slidable into one another. The deepened portion (4) is formed to comprise abutment structure (7) having an abutment condition in which the extent of said slidability of a first one (1) of said specimens into a second one (1A) of said specimens is limited. |
