The sampling theorem shows that aliasing can be avoided if the Nyquist frequency is greater than the bandwidth, or maximum componentfrequency, of the signal being sampled.
采样定理表明，如果奈奎斯特频率大于样本的带宽或样本成分的最高频率，系统的采样失真可以避免。
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However, over time, as XML has grown in frequency of usage and in size and complexity, it has become a more critical component of business operations.
The frequency of service requests against the consolidated target is only determined by the ability of the target database and the information service enablement component to handle those requests.