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。
A ketch therefore USES three primary sails: the mainsail and head sail, as on a sloop, plus the mizzen sail aft.
因此，双桅帆船除了桅杆和帆的区别之外，在其他很多方面也会和单桅帆船有所不同。
Many ketches, therefore, are different from sloops in ways other than just the masts and sails.
帆船上从船头算起的第三条桅杆有三根或多根桅杆，快艇、双桅船或双桅帆船上后面的短的桅杆。
The third mast from the bow in a vessel having three or more masts, the after and shorter mast of a yawl, ketch, or dandy.
另一方面，现代帆船厂商几乎不太生产双桅帆船了，因此如果要买新船的话，单桅帆船的选择面要广得多。
On the other hand, contemporary builders produce few ketches anymore, so there are a greater variety of sloops available as new boats.
双桅帆船一种有纵帆装置的双桅航船，类似于双桅纵帆船，但在船尾的船舵放置有一种较小的补助帆桅。
A two-masted fore - and-aft-rigged sailing vessel similar to the ketch but having a smaller jigger mast stepped abaft the rudder.
如果双桅帆船拥有比同等尺寸的单位帆船更大的帆，它在航行时会倾斜得更多，使得航行效率变低，也更容易翻船。
If a ketch had larger sails than an equivalent sloop, it would heel more (making sailing less efficient) and be more likely to capsize.
因此在决定选择单桅帆船还是双桅帆船时，决定因素并非帆面积，而是将这个帆面积分布在两面帆或是三面帆上带来的相应差异。
So it's not the sail area that matters when deciding between a sloop and a ketch, but differences resulting from having that area spread over three rather than two sails.
结束了他们家的农场生意后，他们夫妇开始艰辛的努力，克雷格首先独自一人离家到加勒比海为一条双桅帆船的船体重铺舱板。
Selling off their businesses as well as the family's farm, the couple started their endeavor with Craig leaving first to begin replanking the hull of a ketch in the Caribbean.
如果你在寻找的是一只航行用船(对应于竞赛用船——译者注)，那么根据你偏好的尺寸范围，你可能会面临在一艘单桅帆船或双桅帆船之间做出选择，这是两种最常见的航行用船。
If you are looking for a cruising sailboat, depending on your preferred size range, you may be choosing between a sloop and a ketch, the two most common types of cruising sailboats.
如果你在寻找的是一只航行用船(对应于竞赛用船——译者注)，那么根据你偏好的尺寸范围，你可能会面临在一艘单桅帆船或双桅帆船之间做出选择，这是两种最常见的航行用船。
If you are looking for a cruising sailboat, depending on your preferred size range, you may be choosing between a sloop and a ketch, the two most common types of cruising sailboats.
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