五年来的冰期水文测验工作,由于同志们的努力,已有不少进步,如河曲、三湖河口、渡口堂、前左、巴家咀,柳园口等站,本年春还做了冰期测验专题总结,不但分析了冰期水情,冰冻的形成及其规律,并取得一些工作经验。如三湖河口、渡口堂冰期测流量 In the past five years, the work of hydrological test in glacial period has made great progress due to the efforts of comrades, such as Hequ, Sanhu Estuary, Dukoutang, Qianzuo, Bajiazui and Liuyuankou stations. In the spring of this year, the ice age test Thematic summaries not only analyzed the formation and law of water conditions and freezing in the glacial period, but also gained some working experience. Such as the Three Lakes estuary, ferry hall ferry measured flow