lug mainsail 主桅斜桁四边形纵帆
boom mainsail 下斜桁主桅帆
Mainsail Trimmer 主帆平舱工
Mainsail Grinder 主帆绞盘手
mainsail mercantile ltd 大帆商业公司
N the largest and lowermost sail on the mainmast 主桅上最大最低的帆 [nautical]
The mizzen sail functions much like a second mainsail.
航行中后桅帆基本上就像第二面主帆一样工作。
Definition: the control line that pulls the mainsail in or out.
将主帆卷起或放开的控制索。
A ketch therefore USES three primary sails: the mainsail and head sail, as on a sloop, plus the mizzen sail aft.
因此,双桅帆船使用三面主要的帆:与单桅帆船一致的主帆,前帆,以及尾桅帆。
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