当初发现反物质是理论预测未知事实的一个范例，而现在根据反物质的研究发现不对称性的事实则是事实预测了未知理论。
The original discovery of antimatter was a nice example of theory predicting an undiscovered fact. This would be a fact that repaid the compliment by predicting an undiscovered theory.
物理学家以前在理论中预言了反物质的存在，但这一点直到1932年才在实验中得到证实。
Over the years, physicists have theorized about anti-matter, but it wasn't confirmed to exist experimentally until 1932.
这一理论预测了反物质的存在，反物质与电子质量相同，电荷相反。
It predicted the existence of an anti-matter with the same mass as the electron but with an opposite charge.
迪拉克理论的极大成功不仅是因为证明了原子结构的微细节，还因为它揭示了物质与反物质的基本对称。
Dirac's theory was not only extremely successful in accounting for the fine details of atomic structure, but also revealed a fundamental symmetry between matter and anti-matter.
迪拉克理论的极大成功不仅是因为证明了原子结构的微细节，还因为它揭示了物质与反物质的基本对称。
Dirac's theory was not only extremely successful in accounting for the fine details of atomic structure, but also revealed a fundamental symmetry between matter and anti-matter.
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