计算结果表明，尾水调压室断面面积随水轮机工作水头的增大或尾水洞长度的缩短而减小。
The calculated result from an example shows that the stable sectional area reduces with the increase of working head, or the decrease of the tailrace tunnel length.
采用拉链式塑料管作为渗灌管，在大棚中埋于地下不同深度，在不同工作水头下进行了基本渗流规律的试验研究。
Study on the basic seepage laws under different working heads, with zippered plastic pipes as percolation irrigation pipe embedded at different depths underground in the shelf.
试验过程及结果表明，该方案削减船闸工作水头约50%，船舶一次过闸省水率约50%的设想是可行的，合乎实际的。
The process and result of the experiment shows in the scheme the assumption of water head diversion by 50% and water-saving rate by 50% is feasible and practical.
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