... 流体动力螺距角 hydrodynamic pitch angle 有效螺距角 effective pitch angle 俯仰角 螺距角 angleofpitch ...
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effective particle velocity pitch angle 有效螺距角
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The average effective pitch damping increases with increasing Angle of oscillation amplitude and decreases with increasing Mach number.
角振幅增大会使返回舱的平均俯仰阻尼增加，马赫数增大使俯仰阻尼降低。
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