名词中文翻译
中文翻译：第二公理
同义词：
['second principle', 'second law of thermodynamics']
例句：
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1. The second axiom of countability states that every set has at least one element.
第二公理，即每个集合至少有一个元素。
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2. This is the second axiom of countability, which states that every set has at least one element.
这是第二公理，即每个集合至少有一个元素。
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3. The second axiom of countability is often used to prove the existence of sets in mathematics.
第二公理在数学中常被用来证明集合的存在。