| 摘要 |
<p>An underwater servicing apparatus comprising a part annular body (20) a plurality of arms (21) extending to each side of the body and being pivotally mounted thereto to be movable radially inwardly, support elements (22) mounted to said arms to facilitate engagement with a cylindrical member (18) which is partially surrounded by said body, a cleaning head (27) mounted to said body (20) for radially displacement inwardly and drive means for causing axial movement of the body on the cylindrical member (18).</p> |
