By means of GPS dummy network reference station positioning system, the ground control points for the calibration of remote sensing image were surveyed with the precision of centimeter level.

利用GPS虚拟网络参考站定位系统，以厘米级精度测定校正遥感图像的地面控制点。

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With BP artificial neural network, a model is developed to forecast the water level of Luoshan Station on Yangtze River.

运用BP人工神经网络建立了长江螺山站水位预报模型。

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With it the energy utilization level of the gathering system can be evaluated on the basis of calculation of the gathering pipe network and flow technology in station.

软件在集输管网、站内流程工艺计算的基础上，可对集输系统的用能状况进行评价，并给出不同技改方案的技术比较及敏感性分析。

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In European and Asian markets, regulators stipulated a certain minimum base station coverage and network quality level.

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