单词mariner-s-compass
Supplementary miniature mariner"s compass is beauty and practical.
附带的微型指南针，美观实用。
The direction or point on the mariner"s compass halfway between due north and due east, or45=east of due north .
东北水手罗盘上的方向或点，在正北与正东中间，或正北偏东45度。
The direction or point on the mariner"s compass halfway between due north and northwest, or22=30 west of due north.
西北偏北水手罗盘上的方向或点，正北和西北中间，或正北偏西22=30？。
But what is more surprising is that even a contrived mariner"s compass was used by Indian navigators nearly 1500 to 2000 years ago.
但更加令人惊讶的是，即使是一个做作的水手指南针也几乎在1500到2000年前的印度航海业上使用。