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.
该网站是将旅行产品以“尾单”的形式向用户定向推送。
This website is viatic product the form with " end odd " to the user directional push send.
减体积单肝段移植物，即切除尾侧部分的单肝段，已被介绍用来解决这一问题。
The reduced monosegmental graft, in which the caudal part of the monosegmental graft is resected, has been introduced to address this problem.
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