利用数值方法研究了某低速轴流孤立压气机转子中非定常叶顶间隙流的流动特征和频率特性。

Numerical methods were utilized to investigate the time-dependent flow patterns and the frequency characteristics of unsteady tip clearance flow in an axial-flow low-speed isolated compressor rotor.

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顽强的种类包括醉蝶花属植物， 橡胶植物（叶厚而有光泽, 常作室内盆栽）和蛇型植物，以及石柑属，芦荟和和平百合。

Hardy varieties include spider, rubber, and snake plants, and pothos, aloe vera, and peace lilies.

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下游静叶干涉增加了动叶顶部间隙流的非定常波动强度和泄漏损失。

Downstream rotor-stator interaction increases the unsteady fluctuating intensities of the rotor tip clearance flow and the tip leakage loss.

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In a way, Yeats is always in costume.

从某种程度上说，叶芝常作此装扮。

耶鲁公开课 - 现代诗歌课程节选