英语翻译Once were at sea,our routine every day was the same.At sunrise and sunset the captain measured our position using the quadrant and set the course using the compass.It was extremely difficult for us to get a correct reading from the quadra
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英语翻译Once were at sea,our routine every day was the same.At sunrise and sunset the captain measured our position using the quadrant and set the course using the compass.It was extremely difficult for us to get a correct reading from the quadra
英语翻译
Once were at sea,our routine every day was the same.At sunrise and sunset the captain measured our position using the quadrant and set the course using the compass.It was extremely difficult for us to get a correct reading from the quadrant as the boat moved constantly.The captain used a system called “dead reckoning”.He knew there was land directly northwest of our original position.So his task was to make sure we stayed on that course.As you can see from the map we kept to a straight course pretty well.In addition,the captain kept us all busy reading the tables to work out our position.Although this took a great deal of time,it didn’t matter.Time was,after all,what we had a lot of!
英语翻译Once were at sea,our routine every day was the same.At sunrise and sunset the captain measured our position using the quadrant and set the course using the compass.It was extremely difficult for us to get a correct reading from the quadra
曾经,在海上的时候,我们每日的日常工作都是一层不变的.每当日出和日落时,船长就会用象限仪来测量我们的方位,用指南针来设定航向.由于船在不断地移动,从象限仪上读出准确的信息对我们来说极其困难.船长使用了一个被称作“精确定位”的设备,他知道在我们最初位置的西北方有一片土地,因此他的任务就是确保我们还在原本的航线上.你可以从地图上看到,我们很好地保持了这条笔直的航线.另外,船长使我们不停忙于阅读表格来计算我们的方位.尽管这花费了大量时间,但是没关系.毕竟,我们拥有很多时间!