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 turbulent flow非定常紊流unsteady boundary layer非稳定边界层unsteady separated flow非定常分离流Unsteady-state Method非稳态法Unsteady and unpeaceful兀蕅不安unsteady heat condition不稳定导热unsteady characteristic非定常效应unsteady flow in a canal河渠非定常流动Unsteady- state period非稳态过程Unsteady Nonuniform Flow变量变速流