直升机飞行速度记录终被新机型打破。

A new type of helicopter breaks speed records.

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异步传送也常常用于速度慢的终断设备。

Asynchronous transfer is also often used to slow down the final device.

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异步传送也常常用于速度慢的终断设备。

Asynchronous transfer is also often used to slow down the final device.

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