求翻译：摘要： 本次设计主要介绍了全回转港作拖轮的设计要求，主要尺寸和有关设计参数，同时也介绍了船体线型的的设计过程，船模试验的内容，船型与船体结构的总布置，操纵运动数学模型的研究，电气系统设计与电气设备的安装布置，最后给出了实船的实验结果，拖力及船速均超过了有关要求的指标该船的设计和建造是成功的。是什么意思？

Abstract: The design introduces a full rotation Hong Kong Tug design requirements, the main dimensions and design parameters, but also the design of the hull, the general arrangement of the contents of the ship model testing, ship hull structure, manipulation of the Mathematical Model for the electr

Summary: This design focuses on the full swing of the Hong Kong design requirements as a tug boat, the main dimensions and the design parameters, and also introduced a line of the hull of the ship design process, the pilot of the boat, the hull structure with the general arrangement of the mathemati

Abstract: This design mainly introduced all returns to transships makes the tugboat the design request, the main dimension and the related design variable, simultaneously also introduced the hull linear design process, the tank experiment content, the body form and the hull structure total arrangeme

Summary: this times design main describes has full Rotary Hong Kong for tug of design requirements, main size and about design parameter, while also describes has hull style of of design process, r c test of content, ship type and hull structure of total layout, manipulation movement mathematics mod