Steady water surface profile of gradually varied flow can be calculated using either a steady flow approach or an unsteady flow approach.

使用计算机计算明渠恒定渐变流水面曲线有两种分法：恒定流方法和非恒定流方法。

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Applying the correction coefficient of heat load, the formula on supply and return water temperature in variable temperature control with varied flow is corrected.

应用热负荷修正系数，对变流量质调节供回水温度公式进行了修正。

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The testing method was introduced with the result of the experiment for the partial resistant coefficient of the control valve under fixed temperature and varied flow quantity.

介绍了定温变流量温控阀局部阻力系数的测定方法和试验研究结果。

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It creates a bus lane on the hard shoulder and uses sensors in the road to detect when mandatory speed limits should be varied to help traffic flow.

BBC: New system to cut traffic jams in Fife