| 1. | The hydrometric pendulum is sometimes used to determine flow velocities in open channels .
测流速的摆锤有时用于确定明渠中的流速。
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| 2. | A land drain is usually a pipe buried in farm land but it may also be an open channel .
农田的排水系统通常是埋在农田中的管子，但也可以是明渠。
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| 3. | These meters find wide use in open channel measurement and are usually a type of weir or flume .
这些流量计在明渠测量中得到广泛地应用，通常是以水槽或堰的形式出现。
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| 4. | Numerical simulation of compound open channel flow
复式明渠水流运动的数值模拟
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| 5. | Code for measurement of sus pended sediment in open channels
河流悬移质泥沙测验规范
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| 6. | Technical standard for observations of ice regime in open channels
河流冰情观测规范
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| 7. | Code for measurements of suspended sediment in open channels
河流悬移质泥沙测验规范
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| 8. | Water flow measurement in open channels using thin - wall weir
用薄壁堰测量明渠中水流量
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| 9. | Liquid flow measurement in open channels . flat - v weirs
明渠液体流量的测量. v形平面溢流堰
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| 10. | Liquid flow measurement in open channels . slope - area method
明渠液体流量的测量.坡度面积法
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