同时发现，在一定的条件下，带有不同中心化常数的三个精致大偏差概率是彼此等价的。
We discover that, under certain conditions, the three precise large-deviation probabilities with different centering numbers are equivalent to each other.
本文利用大偏差定理对此概率如何进行估计进行深入研究。
By use of large deviation theorem, this paper researches deeply to how to estimate such probability.
遗憾的是，迄今为止经典的大偏差理论局限于线性情形，如线性概率，线性期望等。
Regretfully, so far the classic large deviation theory is confined to the linear case such as linear probability. linear expectation and so on.
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