GPS 的精确定位系统(Precise Positioning system, PPS) :只有授权的使用 者具备有解码设备及密码及特殊之接收机才有办法使用精确定位系统。
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为了实现工业CT系统射线源的精确定位,设计了射束中心位置测试专用装置,并开发了测试程序。
The special setting for precise positioning of the X-ray source in industrial Computed Tomography (ICT) system has been made, and the testing program has been developed.
伺服系统则选用三菱电机的伺服系统MR - J2,使用脉冲控制,可以是电机进行精确定位。
We chose the MELSERVO-MR-J2 to make up the servo system, we use impulse control, it can make the motor run more accurately.
准确的地震速度求取对于观测系统设计、地下地质目标体的精确定位、构造解释和储层预测等至关重要。
The exact velocity is vital to layout design, exact orientation of the geologic target underground, structure interpretation and reservoir forecast, etc.
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