This paper first gives an introduction to the principle and system components of the smart antenna and then discusses its self-adaptable arithmetic and technological advantages.

本文在简要介绍智能天线的基本原理、系统组成的基础上，详细论述了智能天线的自适应算法和技术优势。

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The components of CPU include three typical parts: arithmetic unit, control unit and registers.

CPU的基础部件由运算器，控制器和寄存器三局部组成。

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Firstly, based on the theory of pneumatic system design, the arithmetic of cylinder's diameter and the basis of components selection in charging (discharging) circuit are analyzed.

从气动系统设计的原理着手，分析气缸缸径的计算方法及进（排）气回路中气动元件的选型依据；

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The engineers next demonstrated the possibilities of their techniques by creating the essential components of digital integrated systems: arithmetic circuits and sequential storage, as well as the first monolithic three-dimensional integrated circuits with extreme levels of integration.

ENGADGET: Stanford engineers find work around for barriers to carbon nanotube computers