Some mistaken viewpoints were clarified, and requirements on covariability of conservation law were studied deeply.

从一道学试题出发,讨论了机械能恒条件,并深入研究了恒规协变性要求。

Energy has amphimorphic porperties:conservative property of quantity and no conservative property of quality.

能具有恒性和能质不恒性,同时遵循学第一定、学第二定。

This paper retrospects briefly the history of the discovery of Parity Nonconservation, analyses some questions on the Lee-Yang's Argument, and also makes comments on it.

在“李杨之争”出现之后，本文重新简要回顾宇称不恒发现史，并对“李杨之争”所涉及若干问题作初步分析、讨论。