短语
罗经标度盘
mariner's card
;
compass card
校正罗经标杆
compass adjustment beacon
多磁针罗经标度盘
multi-needle compass card
罗经标记
compass marking
标准罗经
standard compass
罗经[校正]标
compass adjustment beacon
分罗经游标卡
vernier card
罗经校正标
Compass Adjustment Beacon
;
compass adjustment mark
根据标准罗经
per standard compass
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