针头轴承
指南针轴心查找器.
课程应该不止一个数字。
N045°
16-point bearingNortheast
Each point spans about 22.5°. Real navigation must also account for variation, deviation, wind and current.
针头轴承
课程应该不止一个数字。
Each point spans about 22.5°. Real navigation must also account for variation, deviation, wind and current.