他童年的环境振起他的勇气与决心。
The circumstances of his childhood called forth his courage and resolve.
人们花费了大量的时间方才提振起勇气。
根据升力系数的脉动量急剧上升的起始点确定抖振起始边界。
The buffet onset boundary is defined as the beginning point where the fluctuating values of aerodynamic coefficients are increased suddenly.
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