生产周期,是指采金船一年中从开船到停船的时间,通常用年工作天数表示.我国东北砂金矿,由于冬春气候严寒,一年中适合采金船作业的天数是有限的.因此,正确选择采金船的合理生产周期,研究延长生产周期的措施,对加强生产管理、增加生产能力、提高经济效果具有十分重要的意义. Production cycle, refers to the gold mining vessels in a year from sailing to stop the ship time, usually expressed in terms of number of working days in northeastern China gold and gold mine, winter and spring because of the cold weather, a year for gold mining operations is limited Therefore, to correctly choose the reasonable production cycle of gold mining vessels and to study the measures to prolong the production cycle are of great significance to strengthening the production management, increasing the production capacity and improving the economic effect.