A rig on a sailing ship that has quadrilateral and triangular sails set to the fore-and-aft line and that can be trimmed to leeward.
帆船上的装置，有安装在船头或船尾的三桅或四桅，且可调整到下风。
A rig on a sailing ship that has quadrilateral and triangular sails set to the fore-and-aft line and that can be trimmed to leeward.
帆船上的装置，有安装在船头或船尾的三桅或四桅，且可调整到下风。
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