Display angle method for removing and measuring deviation of magnetic compass;
显示角法消除与测定磁罗经自差
Design the system for automatically measuring and compensating magnetic compass deviation;
磁罗经自差自动测定和补偿系统的研制
Intellectual measurement and correction system for deviations of magnetic compass;
磁罗经自差的智能测定和校正系统
Magnetic Compass Autodyne Rectifying by Digital Magnetic Detector
基于数字磁力检测仪的磁罗经自差校正方法
dipping needle instrument
倾针仪磁罗经)倾差仪倾差校正仪
General specifications for marine A class magnetic compass
GB/T14108-1993船用A级磁罗经通用技术条件
The Magnetic Compass Deviation Automatic Measurement and Correction System Based on the Gyrocompass Technique;
基于电罗经技术的磁罗经自差自动测定和校正系统
Marine magnetic compass of class B general specifications
Gb/T10104-1995船用bb>级b>磁罗经通用技术条件
General specifications of marine autopilot with magnetic compass
GB/T10846-1989船用磁罗经自动操舵仪通用技术条件
Application scope in latitude of deviation calibration of geomagnetic compass
直感式磁罗经一纬度上自差校正的适应范围
Design of Digital Magnetic Compass System and Study of an Optics Method for Deviation Correction;
数字磁罗经系统设计及其自差校正的一种光学实现方法研究
The Renovation of Magnetic Compass Deviation Revises Based on Satellite Orientation
利用卫星定位实现对爱利法消除磁罗经自差的改进
In regions near the magnetic poles, compasses are virtually useless.
在磁极附近区域，罗盘实际上已经失去作用。
Setting up or removing public compass signs or demagnetizing fields; Salvage sunk vessels or objects;
设置或撤除公用罗经标、消磁场；打捞沉船、沉物；
Application of tracking azimuth calculation method in fluxgate compass
跟踪式航向解算方法在磁通门罗经中的应用
a magnetic compass Bearing.
可分辨磁极方向的罗盘
gyrostabilized magnetic compass
陀螺（稳定的）磁罗盘
declination arc
(罗盘仪上的) 磁偏角弧
prismatic compass
棱镜罗经，三棱镜罗盘仪
The residual magnetism that remains on magnetic storage media after degaussing
经消磁后,磁介质上残留的磁感应。
A compass card or its representation, as on a map.
罗经卡罗经刻度盘或地图上罗经刻度盘的图画