| 摘要 |
<p>The present invention relates to a duct device (18) for a waterjet propulsion (10). The duct device (18) comprises a main duct (30) having an opening (20). The opening (20) includes a long main part (32) extended along a principal axis (34) and at least one lateral section (36) fluid-connected with the main part. At least one lateral section (36) is partly extended along the length of the main part (32).</p> |
