不稳定流 [流] unsteady flow ; [流] unstable flow ; irregular flow ; [流] non-stationary flow
不稳定流动 unsteady flow ; unsteady-state flow
三维不稳定流场 three-dimensional unsteady flow field
不稳定电流 Unstable Current ; [电] unsteady current ; erratic current
瞬时产生的不稳定电流 electrical transient
不稳定渗流 transient flow ; transient seepage flow ; Unsteady seepage flow
对流不稳定性 convective instability
潮汐、风暴潮对波浪的作用是通过其产生的不定常水深与流场实现的；水深与流速对波向的影响很小。
The sea level and current velocity have an effect on wave height, and the wave direction modulation is small.
离心式污水泵(即污水提升泵)，是典型的以输送固液两相流为主，同时含有不定量气体的多相流流体机械。
The centrifugal sewage pump is the typical multi-phase flow fluid machinery, which is mainly used to transport and lift solid-liquid two-phase flow including a certain extent of gas.
黄河河口流路是决定油港港址的关键，尽管有河口流路安排这个不定因素。
The key of the question is that the site of oil dock is determined by the flow couorse at the estuary of Yellow River.
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