CN102323017B - 一种基于瞬态通气原理的地下滴灌堵塞程度原位定量诊断方法及诊断*** - Google Patents
一种基于瞬态通气原理的地下滴灌堵塞程度原位定量诊断方法及诊断*** Download PDFInfo
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- CN102323017B CN102323017B CN201110230157.XA CN201110230157A CN102323017B CN 102323017 B CN102323017 B CN 102323017B CN 201110230157 A CN201110230157 A CN 201110230157A CN 102323017 B CN102323017 B CN 102323017B
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CN102680220B (zh) * | 2012-05-10 | 2014-07-09 | 鲁东大学 | 一种滴灌灌水器水力特性测量装置及测量方法 |
CN102680260A (zh) * | 2012-05-10 | 2012-09-19 | 张振华 | 一种灌水器制造偏差系数的间接估算方法及专用设备 |
IL245403B (en) * | 2013-10-24 | 2018-12-31 | Jain Irrigation Systems Ltd | Method and system for detecting a ceiling in pipes |
CN108427822B (zh) * | 2018-01-18 | 2021-07-09 | 中国农业大学 | 用于提升灌水器抗堵塞性能的漩涡洗壁优化方法 |
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US4868751A (en) * | 1987-09-11 | 1989-09-19 | Mobil Oil Corporation | Method for determining relative permeability of a subterranean reservoir |
CN2227334Y (zh) * | 1994-11-10 | 1996-05-15 | 雷应海 | 气压式土壤湿度测定仪 |
US7748253B2 (en) * | 2004-12-08 | 2010-07-06 | Li-Cor, Inc. | Vent and soil flux measurement system |
CN201615869U (zh) * | 2010-03-02 | 2010-10-27 | 中国水利水电科学研究院 | 一种原位测量田间土壤饱和导水率的装置 |
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Inventor after: Zhang Zhenhua Inventor after: Niu Wenquan Inventor after: Zhang Guimin Inventor after: Zhang Fucang Inventor after: Li Lusheng Inventor before: Zhang Zhenhua Inventor before: Niu Wenquan Inventor before: Chai Hongmin Inventor before: Zhang Fucang Inventor before: Li Lusheng |
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Free format text: CORRECT: INVENTOR; FROM: ZHANG ZHENHUA NIU WENQUAN CHAI HONGMIN ZHANG FUCANG LI LUSHENG TO: ZHANG ZHENHUA NIU WENQUAN ZHANG GUIMIN ZHANG FUCANG LI LUSHENG |
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