相反，它们任何一个都对其身边的鸽子保持着细心的注意，每只鸽子在空中盘旋时也遵循着简单的法则。
Instead, they're each paying close attention to the pigeons next to them, each bird following simple rules as they wheel across the sky.
研究了含有居中盘和悬臂盘的转子轴上出现裂纹时盘的非线性动态响应。
Nonlinear dynamic response of a cracked aero engine rotor with several disks is too complicated and past application oriented research in China has been limited to aero engine rotor with one disk.
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