单词square sail
na.: 【航】横帆网络: 方帆；方形帆；以方帆
方帆
【航海】横帆
A long tapering spar slung to a MAST to support and spread the head of a square sail, lugsail, or lateen.
帆桁吊在桅杆上一头渐细的长柱，用来支撑和展开横帆、梯形帆或三角帆的顶端