磁罗经校正
magnetic compass adjustment
罗经[校正]标
compass adjustment beacon
校正罗经标杆
compass adjustment beacon
GPS与光纤罗经
GPS and fibre-optical rhumb
按标准罗航向按标准罗经船首向
heading per standard compass
按标准罗经首向
heading per standard compass
按标准罗经首向按标准罗航向按标准罗经船首向
heading per standard compass
按操舵罗经船首向
heading per steering compass
按操舵罗经首向
heading per steering compass
按操舵罗经首向按操舵罗航向按操舵罗经船首向
heading per steering compass