美国四月份的工作流失速度有所缓解，这或许是经济衰退最严重时期已经过去的迹象。

The pace of job losses eased in the United States in April, perhaps a signal that the worst of the recession has passed.

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实验结果表明：分离越严重，来流速度越大，有效抑制翼型失速分离的阈值电压越大；

Experimental results indicate that the threshold voltage becomes higher as the inflow velocity becomes higher and the flow separation becomes more serious.

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实验结果表明：分离越严重，来流速度越大，有效抑制翼型失速分离的阈值电压越大；

Experimental results indicate that the threshold voltage becomes higher as the inflow velocity becomes higher and the flow separation becomes more serious.

youdao