因工作的关系利用假期的机会到兰州雁滩公社做了几次参观訪問,向社員学习了一些作物栽培管理技术。特別对“砂田”这一农业措施做了較詳細的了解和观察,据个人的体会写成本文,介紹出来,因了解的不够深刻,有不妥之处請讀者指正。 Due to the work of the relationship between the use of vacation opportunities to Lanzhou Yantan commune made several visits, to members learned a number of crop cultivation and management techniques. In particular, “Sandland” this agricultural measure to do a more detailed understanding and observation, according to personal experience written in the text, introduced it, because the understanding is not deep enough, there are any discrepancies, readers correct me.