The acquisition circuit presented in this paper is a front-end of a field data collection system.

介绍了高速采集电路的一个现场数据采集系统的前端。

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Also the feasibility and effectiveness of the vehicle-following method was proved in the field data collection.

跟车方法的可行性、可靠性在实地采集车速的过程中得到了验证。

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Mapping field data collection is not only the precondition and foundation of mapping projects, but also the most complex and difficult work in mapping projects.

测绘外业数据采集是测绘项目的前提与基础，也是整个测绘项目中最复杂、工作环境最艰苦的工作。

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The Culture for Development Indicator Suite (CDIS) provides a timely response to these challenges, building on the current favourable political context, greater capacity for data collection, and the critical mass of field experiences from large-scale projects.

UNESCO: Culture for Development Indicators