This paper introduces an underwatertool system driven by seawater hydraulics and analyses its makeup, work principle, the research difficulties and solutions.
介绍了一种以海水液压驱动的水下作业工具，分析了该系统的组成、工作原理、研制难点及解决方案。
2
Underwater acoustic technology is an effective tool to exploit ocean resources, and plays an important role in military.
水声技术是海洋资源开发的有效手段，在军事上也具有重要作用。
3
The technique of auto - exchange tool is the one of the key techniques to advance the work ability and level of the underwater manipulator.