英语语法分析

A usually triangular sail attached to the forestay or headstay of a sailboat.

一面通常是三角形的帆，安装在帆船的前桅支索或前支索上。

Forestay: the rigging that secures the mast forward.

前支索：从前面固定桅杆的索具。

A furling jib rolls up around the forestay using special hardware in a furling system.

一个收帆臂(furling jib)使用收帆系统中的特殊硬件设备，环绕着前桅支索(forestay)卷起。