| 摘要 |
<p>One of the applications of the device according to the invention is effected by a plurality of autonomous annular vacuum chambers (R, S and T) of variable volume and assembled together and surrounding a container having the form of a bellows (19) containing a pressurized fluid. A valve (17) fitted on the container (19) allows the diffusion of said fluid into an aerosol or a jet.</p> |
