资料来源 : pyDict

樯头纵材,匝桅木

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Trestletree \Tres"tle*tree`\, n. (Naut.)
   One of two strong bars of timber, fixed horizontally on the
   opposite sides of the masthead, to support the crosstrees and
   the frame of the top; -- generally used in the plural.
   --Totten.