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1·If the law of parity conservation were suspended, this restriction would be removed.

如果宇称守恒定律受到破坏，就会取消这个限制。

2·Yang received the 1957 Nobel Prize in Physics together with Tsung-dao Lee, for their work on parity non-conservation of weak interaction.

杨振宁和李政道因为在弱相互作用下宇称不守恒原理方面的工作获得了1957年的诺贝尔物理学奖。