forestay

名词 forestay:

1. an adjustable stay from the foremast to the deck or bowsprit; controls the bending of the mast

fore.stay

n.Nautical （名词）【航海】
A stay extending from the head of the foremast to the bowsprit of a ship.
前桅支索：从前桅顶部拉到轮船的第一斜桅的绳索或钢丝