According to the principle of dynamicanalogy, the try net used for double - rig shrimp trawling on Sierra Leone fishing ground is studied and designed in this paper.
本文应用动力相似原理，研究设计了塞拉里昂渔场双支架虾拖网的试验小网，用来判断渔场资源和中心渔场。
2
In this paper, spring analogy method for dynamic unstructured grids has been studied.
对用于非结构动网格生成的弹簧近似方法进行了研究。
3
This system has high economy because of using itinerant monitor to analogy signals that made by PLC modules, using LED display and scan keyboard as press buttons that made by PLC dynamic I/O modules.