| 摘要 |
<p>The assembly has an inflatable bag assembly (13) driven by an engine (M), and a ventilation film (15) closes the assembly in a sealed manner. The film has secondary guiding orifices (151) so that the orifices are dilated by air pressure and are compressed, when the assembly (13) evacuates the air and sucks the air, where the film is elastic and deformable. The assembly and the film are installed between a base (11) and an air evacuating cover (16).</p> |
