| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a cable with small specific gravity which does not sink under water even a float is not attached, and to provide an underwater work device without any trouble caused by the usage of such a cable with small specific gravity. SOLUTION: For the cable 10 used for communication and electric power supply, comprising at least one or a plurality of core wires 12 inside an outer envelope 11, one or a plurality of air tubes 13 or air sacks are arranged inside the outer envelope 11 together with the core wires 12.</p> |
