Perelman's theorem goes far beyond proving this "non-existence" claim, just as Wiles' theorem tells you much more than non-existence of integer solutions of certain equations.
佩雷尔曼的定理远远超过证明这些“不存在”的断言，正如怀尔斯证明的定理所告诉你的东西要多于一类方程不存在整数解这个结论。
From the existence or non-existence of an atomic fact we cannot infer the existence or non-existence of another.
从一个原子事实的存在或不存在中，我们不能推断出另一个原子事实的存在或不存在。
The existence and producing conditions of non-isoentropy flow and non-isoentropy wave have been argumented in classical gas dynamics.
在经典气动力学中讨论了非等熵流和非等熵波的存在和产生的条件。
During the last two decades, the existence of a blood-borne virus responsible for non-A, non-B hepatitis was suspected but not identified.
在过去二十年里，存在通过血液传染的病毒负责非甲非乙型肝炎怀疑但尚未确定。
Second, the non-existence of non-constant positive steady-states are given based on the priori estimates, in which energy method are used;
其次在先验估计的基础上用能量方法得到了该模型非常数正解的不存在性；
Second, the non-existence of non-constant positive steady-states are given based on the priori estimates, in which energy method are used;
其次在先验估计的基础上用能量方法得到了该模型非常数正解的不存在性；
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