Interpreting survey data may have pitfalls. 对调查数据的解释也许存在着缺陷。
The collection and processing of the aeromagnetic gradient data in the experimental flight are introduced and the flight data are analyzed. 介绍了试验飞行中航磁梯度数据采集与处理过程，并对测量资料进行初步分析。
Representative measuring results in control and regulation processes depend on reliable and meaningful measurement data collection. 控制和校准过程的代表性测量依赖于可靠而且具有实用价值的测量资料收集。
