船舶渔用机械,远洋金枪鱼延绳钓自动系结支绳装置,在日本高知县泉井铁工所研制开发。目前,该自动装置,正在外海作最终试验,年内可见于市场。延绳钓渔业,是远洋金枪鱼渔船代表性的渔法。每条干绳约 Marine fishing machinery, ocean tuna longline automatic tie-rope device, developed in Japan’s Kochi Prefecture Izumi Iron Works. At present, the automatic device, is the final test offshore, can be found in the market during the year. Longline fishing is a representative fishing method for ocean tuna fishing vessels. About every dry rope