名词
中文翻译：特征函数
同义词：
['characteristic function', 'characteristic function', 'characteristic function']
例句：
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1. The characteristicfunction of a system is the set of values that the system can take on.
一个系统的特有函数是系统可以取到的值的集合。
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2. The characteristic function of a probability distribution is the probability mass function.
一个概率分布的特有函数是概率质量函数。
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3. In signal processing, the characteristic function is used to describe the behavior of signals.
在信号处理中，特有函数用于描述信号的行为。