航位推算
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dead reckoning position 积算船位 ; 推算船位 ; 推算船位积算船位 ; 推测位置
position by dead-reckoning detail 积算定位
dead-reckoning position 航位推算装置
dead reckoning position detail 推算位置
position reckoning
位置计算
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Two kinds of position technologies such as GPS and dead reckoning system are discussed, The hardware frame of vehicle position system based on two position technologies is proposed.
讨论了GPS和航位推算系统两种定位技术，给出了基于这两种定位技术的车辆定位系统的硬件构成。
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When bad weather prevented navigators from seeing the sun,moon or stars, they had to use a method called "dead reckoning" to find the ship's position.
VOA: special.2009.12.23
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