free drainage
英 [friː ˈdreɪnɪdʒ]
美 [friː ˈdreɪnɪdʒ]
网络 自由下渗; 自流排水; 自由排水
双语例句
- Pressure test of segmental pigging: cleanup sundries, free rust, drainage and exhaust in pipe.
分段清管扫线试压：清除管线杂物、浮锈、排水、排气。 - Free dermatoplasty combined with vacuum sealing drainage for the treatment of severe pressure sores
游离植皮结合负压封闭引流技术治疗难治性褥疮创面 - Few reliable generalizations exist. After twenty-four hours free drainage, there was little difference in moisture content.
几乎没有可靠的概括法则。24小时不排水，湿度则几乎没什么不同。 - We would have leak free distribution of water, more economic irrigation techniques and improved drainage and flood control.
我们的配水系统将不会泄漏，更多经济的灌溉技术将被发明，并且排水及防洪控制将会得到改善。 - Calculations of Free Water Drainage Current Velocities over Pavement and Slope
漫流排水时公路路面及边坡的水流速度计算 - On the lowering of the free surface of ground water under the action of drainage pipe system
在排水管列作用下地下水自由表面的下降问题 - Research on the solution of seepage free surface to the port shores in Three Gorges reservoir Optimization of Port Bank Slope Drainage Technique in Three Gorges Area
三峡库区港口岸坡渗流自由面求解方法研究三峡水库港口岸坡排水方案优化研究 - The salt concentration of groundwater in 0.8m and 1.2m under control drainage is much higher than that of free drainage due to the fact that the salt concentration in such depth was less affected by irrigation under control drainage.
而在0.8m和1.2m深度，控制排水条件下地下水盐分浓度明显大于常规排水条件下盐分的浓度，而且盐分受灌溉的影响程度要小于常规排水； - Application Study of Concrete Double Mixtures and Vacuum Water Free Technology in the Hydraulic Structures of Irrigation and Drainage
农水建筑物混凝土双掺及真空脱水技术的应用研究 - The agricultural development here must depend on irrigation. Since the establishment of irrigation area in 1994, irrigation water has been diverted from the Yellow River and the main irrigation mode is free flooding irrigation without drainage system.
该区的农业发展主要依靠灌溉。1994年底孪井滩正式引黄灌溉，灌溉方式以大水漫灌为主且只灌不排。