Introduces the basic principle of auxiliary design on axially-symmetric spare part with computer and tells the content of computer software as well as its program method and its stage.

本文介绍了轴对称零件计算机辅助设计的基本原理和计算机软件的内容及软件的设计方法、步骤。

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Discuss the Sequential Monte Carlo localization method for wireless sensor networks scheme and modify the basic algorithm to overcome the sample degeneracy problem in resampling stage.

讨论了贯序蒙特卡罗方法在无线传感器网络节点定位算法中的实现，并针对再采样阶段的样本缺失现象，对基本算法进行了改进。

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In our country, the research of Precision Agriculture is in beginning stage now, especially in basic theory and method studying.

目前我国“精细农业”的研究尚处于起步阶段，尤其是在基础理论和方法研究方面。

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