By varying the current to either solenoid, the amount of spool movement can be varied and hence the amount of flow through the valve can be controlled.

通过改变两个之一电磁铁的电流，阀芯移动的位移能够被改变，因此控制了通过阀的流量。

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Flow mean angles varied linearly with the upstream-downstream intermittency.

瞬时流动平均方向角与正反向间歇流动因子成线性变化。

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Peak concentrations and gradients for gentamicin varied considerably between animals, likely resulting from variations in round window membrane permeability and rates of perilymph flow.

庆大霉素的峰值浓度和浓度梯度在动物之间的差异相当的大，这可能是由圆窗膜通透性的不同和外淋巴液流动率的不同所导致的。

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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