compass adjustment beacon
... 略最低低潮面，*印度大潮低潮面 lower low water 罗经[校正]标 compass adjustment beacon 罗兰-C定位系统 Loran-C positioning system ...
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短语
罗经校正标
Compass Adjustment Beacon
;
compass adjustment mark
校正罗经标杆
compass adjustment beacon
罗经校正立标
compass adjustment beacons
罗经校正浮标
compass buoy