There is such a kind of uncertain phenomenon in the realistic world, that is, the occur-rence or non-occurrence is determinate, but the event itself is unclear.
在现实世界中，有这样一类不确定的现象，即事件发生与否是确定的，但其本身是不分明的。
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The responses in non—determinate system and chaos in determinate system are similar. The dynamical characteristics of power spectrum are discussed. In…