First, the structure, design principles and method of the system are introduced in detail.

作者介绍了计算机图像处理系统的构成及设计原理和方法。

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First, the basic theories and technologies of plant layout will be narrated, including the definitions, elements, principles, classifications and the method used to estimate a plant layout solution.

首先，本文阐述了基本的车间布局理论与技术，包括车间布局问题的定义，车间布局的要素、原则与分类，布局方案的评价方法。

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The structural stabilities and electronic structures of W atomic chains are studied by employing first-principles plane wave pseudopotential method based on the density functional theory.

使用基于密度泛函理论的第一原理平面波赝势法，研究了W原子链的结构稳定性和电子结构性质。

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