The key technique for precise orientation of RS image in GCP scarce region is to obtain the high-precision elements of exterior orientation on the imaging moment.
稀少控制点地区遥感影像精确纠正的关键在于获得拍摄时刻影像的高精度外方位元素。
The key technologies, the whole makeup, the motion between electrode and workpiece at three coordinates, precise orientation of electrode and cycle system of work liquid are emphatically studied.
该技术方案以小型电火花机床的主轴头和电源控制柜为基础，重点研究了总体结构、电极与工件之间的三坐标移动、电极精确定位、工作液循环系统等关键技术。
The PPS orientating system for tunneling can make a precise orientation for TBM and its tunneling direction by provide the related information of tunneling error from TBM to the operator.
TBM的PPS定位、导向系统，可为TBM确切位置和掘进方向定位，为操作手提供TBM偏离轴线的信息。
The PPS orientating system for tunneling can make a precise orientation for TBM and its tunneling direction by provide the related information of tunneling error from TBM to the operator.
TBM的PPS定位、导向系统，可为TBM确切位置和掘进方向定位，为操作手提供TBM偏离轴线的信息。
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