ship compass
... marine transformer 船用变压器 mariner's compass 船用罗经 marking of hull parts 船体零件号料 ...
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... ship clock 船钟 ship compass 船用罗经 ship construction basin 造船坞 ...
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·2,447,543篇论文数据，部分数据来源于NoteExpress
GPS罗经是新一代船用导航设备，它克服了传统罗经的许多缺点，能全天候、实时地为船舶等提供精确的导航数据。
GPS compass is a new kind of navigation equipment, which overcomes the shortcomings of traditional compasses and provides accurate navigation data anywhere, anytime.
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