rhumb

rhumb
[rʌm]
noun
(Nautical)(航海)
  1. (亦作 rhumb line)an imaginary line on the earth's surface cutting all meridians at the same angle, used as the standard method of plotting a ship's course on a chart
    恒向线
  2. any of the 32 points of the compass
    罗经方位
语源
  1. late 16th cent.: from French rumb (earlier ryn (de vent) 'point of the compass'), probably from Dutch ruim 'space, room'. The spelling change was due to association with Latin rhombus (see rhombus)
英语宝典
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