unsteadyflow非恒定流unsteadyadj.不稳定的；易变的；颤动的；不规则的；不一致的v.不稳定；动摇Unsteady integral method非稳态积分法unsteady vortex shedding非定常旋涡脱落unsteady water injection不稳定注水Unsteady characteristics非稳态特性unsteady-state process非稳态过程unsteady heat conduction不稳定导热unsteady inverse problem非定常反问题unsteady groundwater flow地下水非稳定流Unsteady oil-film force非稳态油膜力unsteady wind tunnel test非定常风洞试验

1. In this paper, the effects of solidity of rotor-stator cascades on axial-flow compressor performance are investigated with steady and unsteady flow calculation.
   采用定常流和非定常流计算方法研究了各种动静叶稠度组合对轴流压缩机性能的影响。
2. It describes unsteady flow toward a discharging well in an extensive aquifer.
   它描述位于广阔含水层中的抽水井的非稳定流。
3. Difference model for calculating formation pressure of oil wells at multireservoirsingle phase unstable radial flow condition is established.
   本文建立了多油层径向单相不稳定流条件下油井地层压力计算的差分模型。