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单词 lubber line
释义

lubber line

(also lubber's line)
noun
A line marked on the compass in a ship or aircraft, showing the direction straight ahead.Adjustable compasses have a compass body with a lubber's line and a rotating capsule or bezel with a boxing mark....
  • Simple compasses may use north or 0º on the azimuth circle as a lubber's line.
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更新时间:2024/11/11 12:39:07