| 摘要 |
PROBLEM TO BE SOLVED: To provide a ship, each craft and each submarine capable of longitudinally removing impurities by each net provided on a front side and a rear side thereof, preventing involvement of persons during the operation, and developing the design for appearance. SOLUTION: Sea water passes through a lower part of a ship to eject sea water by the rotation of a propeller screw. The speed of the ship is increased by the rotational speed of the propeller screw, and the ship can be moved astern by ejecting sea water to drop the ship speed as soon as the ship speed is increased by the rotational speed of the propeller screw. A submarine achieves the similar operation. Each cruising ship, craft and submarine are provided with each net on a front side and a rear side thereof to longitudinally remove impurities. Involvement of persons is prevented, while each ship, craft and submarine proceed, and the design of appearance is developed. COPYRIGHT: (C)2006,JPO&NCIPI
|
