| 摘要 |
<p>A remotely operated underwater earth moving vehicle (200) has a vehicle body (220) and a pair of jetting legs (223). A pair of thrusters (225) can be pivoted about pivots (227) to generate substantially forward thrust, substantially vertical thrust, or to be arranged at an intermediate position between the positions in which substantially forward or substantially vertical thrust is generated. A further pair of thrusters (229) generates horizontal thrust laterally to longitudinal axis (230), and a further pair of thrusters (231) generates substantially vertical thrust.</p> |
