alephnull

例句：

1. 1. The concept of aleph null has been studied extensively in the field of quantum mechanics.
   在量子力学领域，对阿莱夫零的概念进行了广泛的研究。
2. 2. The study of aleph null is crucial for understanding the nature of space-time.
   研究阿莱夫零对于理解时空的本质至关重要。
3. 3. In the context of modern physics, aleph null refers to the zeroth dimension of space-time.
   在现代物理学的背景下，阿莱夫零指的是空间-时间的零维。