fidn.(名词)Nautical A square bar used as a support for a topmast.【航海】 桅栓:方木条,用来支撑中桅A large, tapering pin used to open the strands of a rope before splicing.硬木钉:一种大的、两头渐尖的钉,在接合绳头前用来解开一股绳来源:[Origin unknown] [起源不明]