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“井首下卧”是徐水县水务局经过１０年探索研究的成果，解决了管灌建设中机井首部存在的“象鼻子”问题，经济、社会效益显著，施工简单，适宜推广。
“Wellhead” is a result of 10 years of exploration and research conducted by Xushui County Water Resources Bureau to solve the “nose-like” problem of the first well in pipe irrigation construction. It has significant economic and social benefits, is simple in construction and suitable for promotion.