但是,空载光达的点云 经过自动化与人工作业,将未打到地面的点云滤除,获得「地面点(ground points), 这些离散点再经过网格化内插,产生DEM,以代表一个裸地连续面。这个连续面内 实际潜藏两大问题,即空缺与缺陷。
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Ground Control Points 地面控制点 ; 控制点
Ground Stress Measuring Points Disposition 地应力测点布置
the ground control points 地面控制点
Record Ground Control Points 采集地面控制点
At last, adaptive threshold is used to distinguish ground points and non-ground points.
设置自适应阈值,完成地面点与非地面点的判断。
Spring gaskets should be added to the ground points, and the connection should be fastened.
各接地连接点应加弹簧垫片,连接紧固可靠。
If a small potential difference exists between two ground points, some ground currents may flow through a sensitive part of the system.
如果在两个接地点存在一个小的电势差,在系统的敏感部分就会有接地电流通过。
it's price points are, you know, middle of the ground, I guess.
我们的零售价也是中等水平。
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