| 摘要 |
<p>A water aeration assembly consists of an elastic hose resting on a rigid supporting profile. The hose has a series of slits which open under turgor pressure to release air bubbles. The diameter of the hose is greater than that of the profile outer face without the depression. The supporting profile (1) cross-section incorporates one or more depressions (11). The depression (11) extends of the entire length of the supporting profile and is located on the profile upper face (9). When non-operational, the hose outer face (2) falls without folding into the depression (11).</p> |
