上桅的高过中桅的桅杆的，上桅帆的，上桅索具的；与上桅及其帆或索具有关的。

Of, relating to, or being the mast above the topmast, its sails, or its rigging.

youdao

帆若不挂上桅杆，是一块无用的布；理想若不付出行动，纯粹是虚无缥缈的梦。

A said if not hoisted, I a useless piece of cloth; An ideal, if not put into effect, is a purely visionary mist.

youdao

主上桅帆：显示了主桅上的上桅帆。

Main topsail: Shows the topsail added to the Main Mast.

youdao

主上桅帆：显示了主桅上的上桅帆。

Main topsail: Shows the topsail added to the Main Mast.

youdao