The difficult areas lie in the middle, especially around the "hacktivists" who are the main actors on both sides.
困难之处在于中间地带的人群,尤其是双方阵营的主要行动者—黑客活动分子。
The result shows that RTK technique is a good tool to heighten survey efficiency, especially in the difficult watching areas.
实践表明,RTK测量可以较大幅度提高工作效率,尤其在通视困难地区更具明显优势。
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