Then the synoptical conversion parameter is calculated by control coordinates and photogrammetric coordinates of three control points.

由控制点的已知控制坐标与求得的摄站坐标系下的坐标，进一步求得两坐标系的转换参数的初值；

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Gating is accomplished by configuring three separate points in the infrastructure that control the flow and volume of requests into the next layer.

您可以通过配置基础结构中三个不同的点来实现限制，这些点可控制流向下一层的请求的流动和容量。

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In order to realize the close-loop control to the cabin, three target points on the cabin must be got to solve the position and orientation of the cabin.

为了实现对馈源舱的高精度控制，需要精确测量馈源舱上不共线的三个目标点的坐标，实时确定馈源舱的位置和姿态。

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The Defense Supply Center at Columbus, one of three inventory control points operated by the Defense Logistics Agency, employs 7, 000 civilians and contract personnel.

FORBES: Military Interests May Sway Vote In Ohio, A Key State For Republicans

With the home side two points clear midway through the second half, Saints took control with three late tries, the match-clincher coming from Eastmond.

BBC: Warrington 26-40 St Helens