We can find it is reliable and effective to use FEA to analyze the vibration characters of moving blades by comparing with the results of modal experiment.

通过与模态试验结果的比较可以发现，采用有限元法分析动叶片的振动特性是可靠和有效的。

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The blades will attach to a drivetrain that does away with many of the moving parts, including the gearbox, that are prone to breakage and energy loss.

风叶直接与动力传动系统连接，甩掉了包括变速箱在内的许多传动部件，后者往往容易产生断裂事故或造成能量损失。

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Geladas' dextrous hands are grass-plucking machines, moving as many as 150 blades a minute from soil to mouth.

狮尾狒狒敏捷的双手就像除草机，每分钟可往嘴里运送多达150个叶片。

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If the blades are moving quickly, the raptors cannot see the blades and will dive through the blades when they have spotted a likely victim.

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The blades start moving in 60 seconds.

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Until the development of the Charlestown Test Center, any company moving into development of longer blades had to test in Europe, which was time-consuming and costly.

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