Dennis told The Associated Press that the two standards have caused " chaos" for surveying and mapping operations.

丹尼斯对美联社说，这两个标准给测绘工作带来了" 混乱" 。

The Tianhui satellites are tasked with scientific experiments and research, land and resources surveying, and geographic surveying and mapping.

天绘卫星的任务是科学实验和研究，国土资源普查和地理信息测绘。

They are divided into different teams covering excavation, surveying and mapping, as well as a digital scanning, according to reports from the Chengdu Daily.

他们分为不同的团队，涵盖挖掘、测绘和数字扫描。