该设备以电视跟踪和测量为基础，主要用于测量船执行海上卫星测控任务和校飞时提供精确的航向数据。
When the measure ship carries out the measure assignment, it provides exact course data via measuring fixed star day and night.
该设备以电视跟踪和测量为基础，主要用于测量船执行海上卫星测控任务和校飞时提供精确的航向数据。
When the measure ship carries out the measure assignment, it provides exact course data via measuring fixed star day and night.
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