当偏差值超过 MAX_TONE_DEV变量时，upDev和downDev变量以及比较逻可用于采集连续音调变化。
The upDev and downDev variables and comparison logic are designed to acquire these contiguous tonal changes if they deviate more than the MAX_TONE_DEV variable.
此外，作者还给出了一类具有连续变量的偏差分方程的振动准则。
Furthermore, the author gives the oscillation criteria of some partial difference equation with continuous variables.
建立关于具有连续变量非线性偏差分方程存在最终正解的充要条件。
The present paper deals with the sufficient and necessary condition of the final positive solutions of non-linear partial-difference equations and first presents the comparison theorem.
建立关于具有连续变量非线性偏差分方程存在最终正解的充要条件 。
Non-existence of eventually positive solution of difference inequality with several delay quantities;
建立关于具有连续变量非线性偏差分方程存在最终正解的充要条件 。
Non-existence of eventually positive solution of difference inequality with several delay quantities;
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