n.异步；不同时
=asynchrony.
The synchronization or asynchronism transmission may be selected with sundry modes. 数据传输包括同步传输和异步传输。
It achieves the necessary asynchronism and persistence by combining storage with the physical movement of information. 通过把存储与信息的物理移动结合起来，它获得了必要的异步性和一致性。
