• The spatial spectra of net rift for image processing have been mathematically analysed by means of 2d Fourier transform. Its directional property has been found.

    本文利用付里叶变换图象网络构造频谱作了数学分析,并指出了方向特点

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  • It has characteristics of hydraulic setting, bi-directional slip anchoring, and fishing property of matching releasing tool, so it's an ideal tool for water shutoff and separate zone production.

    具有液压坐封、双向锚定、配套丢手打捞工具打捞基本特点油田卡堵水、分层采油的理想配套工具。

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  • The SH numerical example shows that this new artificial boundary element has a multi-directional transmitting property.

    SH数值分析表明本文有限元模型具有多向波动透射能力。

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  • This paper introduces the study on omni - directional vision system calibration method using central catadioptric projection property of space line.

    利用空间直线中心折反射投影特性视觉系统标定方法进行研究

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  • The directional and a certain distance control blasting removal nearby was introduced, the pipeline of chemical property.

    结合实例,介绍在易燃易爆的化工物料管线附近六层厂楼的定向、拆除。

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  • The directional and a certain distance control blasting removal nearby was introduced, the pipeline of chemical property.

    结合实例,介绍在易燃易爆的化工物料管线附近六层厂楼的定向、拆除。

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