小鸟也会从雾气中飞出来，一直飞到高空中发光的地方，停在半空中晒太阳，或者，它们降落在把草地隔离起来的湿栏杆上，这时的栏杆闪闪发亮，像玻璃棒一样。

Birds would soar through it into the upper radiance, and hang on the wing sunning themselves, or alight on the wet rails subdividing the mead, which now shone like glass rods.

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历史学家比尔说：“这次世界杯看不到任何种族隔离的遗迹，看到的仅仅是公路有多好，街道有多么安全，体育馆有多棒”。

“There's a sense this World Cup hasn't been about the legacy of apartheid, but about how good the roads are, how safe the streets are, how great the game parks are,” said the historian Bill Nasson.

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考虑到飞行控制系统闭环反馈及实时的特性，设计了多个鲁棒自适应观测器用于传感器的故障隔离与重构。

Based on performance of real-time and closed loop feedback flight control system, a set of robust adaptive observers are set up for sensor fault isolation and reconfiguration.

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