The fourth chapter tells how to build 3D solid model for hull structure applying the oriented object technology, furthermore, the corresponding data structures are presented.

第四章介绍如何利用面向对象的方法建立船舶结构的三维实体模型，同时给出相关的数据结构；

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The days of the naive approach — where we believe that if a system is object-oriented (or pick your technology), then it's good — are over.

天真方法的日子——我们相信如果一个系统是面向对象的(或选择你的技术)，那么它是好的——结束了。

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The technology is based on object-oriented software and will be used to support C2 and battle management applications.

这是一项基于目标导向软件的技术，将被用于对指挥控制和战场管理进行支持。

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