trestletree
n. 樯顶纵桁
词形变化
trestletrees
复数
trestletrees
释义与例句
n.
-
1.
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.
航海 交通
词源
From trestle + tree.
来源:wiktionary