| 摘要 |
This glass comprises two bowls, an outer bowl (1) and an inner bowl (2). The outer bowl (1) enters the inner bowl (2), and between the inner wall (3) of the outer bowl (1) and the outer wall (4) of the inner bowl (2) is a free insulating space (5), whose width s may be approximately equal to the thickness of the wall of one of the bowls (1, 2). The bottom (6) of the inner bowl (2), preferably at its middle or at its lowest point, has a depression on its inside and a projection (7) on its outside, the latter resting on the bottom (8) of the outer bowl (1), in particular on its lowest point. <IMAGE>
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