摘要
本文介绍磁罗经自差实测五种方法,是为船长提供多种方法,因地制宜,利用船泊港具备条件,选择符合条件的方法,测定本船的磁罗经自差,确保船舶安全航行。
This article introduces five methods for determining the residual deviation,be sureto navigate safelg,this article gives captains various methods,So that with thecondictionsthe harboars have they can use the right method to determine the magnetic compass’re-sidual deviation of ships.
关键词
磁罗经
自差
磁差
船舶
实测法
Magnetic compass
deviation variation
bearing course
