题目

英语翻译
a fairly accurate estimation of a ship’s position can be calculated by a technique known as dead reckoning(DR).To do this the navigator needs to know the ship’s course,speed and distance run.A DR position is made more difficult to calculate by the effects of wind,tide and current.
dead reckoning(DR) 推算航法

提问时间：2021-10-14

答案

对于船只位置相对精确的估量可以由一种名叫航位推测法(DR)的技术来计算.要实践这种技术,领航员就需要了解船只的航线、速度和航程.受风、潮流和气流的影响,会使得航位推测法计算船只位置更困难.
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