1·Aerial photography is one of primary technology measures of rapidly obtaining and updating geographical information, and its technological project directly influences the ultimate production quality.
航空摄影是快速获取和更新基础地理信息的重要技术手段之一，其技术设计直接影响航摄成果直至最终航测成图的质量。
2·Finally, starting from systematic theory, this paper makes use of technological analysis method and builds up mathematical model on equipment updating analysis.
在设备更新中，从系统理论出发，并结合实际情况，采取了技术分析方法，对设备更新进行分析建立数学模型。