单管或多管试漏时，因打压介质充填量小，若管束有漏点，易于从压力表上快速显现出压降。
Single - or multiple leakage test, by suppressing media filling quantity is small, if the tube bundle leakage, easy to from the pressure gauge on the fast show pressure drop.
在边缘提取的基础上，系统利用自主设计的一套算法快速实现了对图像中岩块几何特征量(面积、周长)的计算。
Based on edge detection, the system implemented the quick calculation on rocks area and perimeter with the developed arithmetic.
研究结果表明，采用SIFT算法提取特征点实现基于普通非量测相机无人机遥感系统获取的影像快速自动拼接在技术上是可行的，满足减灾救灾工作的突发性要求。
The results of this study show that it is feasible for image rapid automatic stitching by SIFT key point extraction. It also meets the disaster reduction and relief requirements.
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