英语语法分析

A square bar used as a support for a topmast.

桅栓：方木条，用来支撑中桅。

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

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.

上桅的高过中桅的桅杆的，上桅帆的，上桅索具的；