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

从一道力学试题出发,讨论了机械能守恒的条件,并深入研究了守恒规的协变。

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

能量具有量的守恒和能质的不守恒,同时遵循热力学第一定、热力学第二定。

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.

“杨之争”出现之后，本文重新简回顾宇称不守恒的发现史，并对“杨之争”所涉及的若干问题作初步的分析、讨论。