| 摘要 |
<p>The lid (1) has a dual-wall window (10) including an upper wall (12) and a lower wall (11) belonging to a lower part (20) of the lid, where the upper wall belonging to an upper part (30) of the lid is moved with respect to the lower part of the lid. The upper part of the lid arranged on the lower part of the lid defines a confined space (15) between the lower and upper walls. A steam exhausting part (13) traverses the lower and upper parts of the lid, and includes a housing (14) arranged between the lower and upper parts.</p> |
