ship's position measurement
... 船位 ship's position 船位测量 ship's position measurement 船舶动力装置 ship's power plant ...
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船位与方位测量 ship position and attitude measurement
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CCD星体跟踪器作为舰船位置测量仪器，因其定位精度高、无位置积累误差、快速和智能化工作而受到重视。
Using the CCD star tracker as the ships position measuring instrument is considered much for its high positioning accuracy. no position accumulated error, fast and intelligent work.
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