sectional area of the pipe
sectional area of the pipe
管道的截面积
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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According to this study, the optimal design in the size and shape of the linking pipe helps to reduce the sectional area for stability.
研究表明：如果合理地选择设计连接管断面的尺寸和型式，就可以进一步减小有连接管的尾水调压室水位波动稳定所需的断面积。
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