In a dusty field in Kitui, eastern Kenya, farmers are being taught how to construct small, semi-circular barriers of earth that control the flow of water, slowing its run-off.
在肯尼亚东部的基图伊，尘土弥漫的田地里，农民们正学着建造小型的环形土坝，以此控制水量、减缓水分流失。
Flow industry is an enterprise of continuous and semi - continuous process of manufacture.
流程工业是连续型和半连续型生产过程的企业。
Experimental and theoretical studies on the flow characteristics of semi circular impinging stream drying were made.
进行了半环对撞流干燥流动特性的实验与理论研究。
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