A single triangular sail, of strong canvas, was hoisted as a storm–jib, so as to hold the wind from behind.

中前帆上的附加尖桅也去掉了。各个舱口都盖得严丝合缝，一滴水也不会从外面流进船舱。舱面上只留下一张厚布三角帆代替船头上的大帆，以便利用背后吹来的大风继续航行。

They had from one to three masts with large square sails and a small triangular sail at the bow.

他们有一到三根桅杆，桅杆上挂着大方帆和船头的小三角帆。

The antique cannon by the front door still pointed out across the channel, where dhows with traditional triangular sails go gently by.

前门的古董大炮仍然指向海峡对面，挂着传统三角帆的独桅帆船缓缓驶过。

The Islamic world also produced the triangular lateen sail, which became super important because it allowed for ships to tack against the wind.

伊斯兰世界还生产了三角帆，它变得非常重要，因为它允许船只逆风航行。

A single triangular sail of strong canvas was hoisted at the bow to keep the boat from turning into the wind. Then they waited.

船头悬挂着一张坚固的三角形帆布帆，以防止船转向逆风。然后他们等待。

But when the breeze was warm and gentle — less than 3 meters per second — the spiders spun out a triangular sail made of silk threads.

但是当微风温暖而柔和时——低于每秒 3 米——蜘蛛会拉出一张由丝线制成的三角形帆。