| 摘要 |
<p>The device (1) has a set of wall portions (4, 4') that is arranged in an approximately parallel manner so as to define a passage in the shape of a slot (2) between the set of wall portions. An elongated element (5) extends between the set of wall portions so as to longitudinally subdivide the passage in the shape of the slot without sealing the passage. A displacement of the slot is realized by the elongated element. The elongate element is mounted with the possibility of extraction and/or displacement out of the slot. An independent claim is also included for a hydraulic gutter element.</p> |
