mass-energy equivalence

1. Nuclear physics has provided extensive experimental support for the mass-energy equivalence.
   原子核物理学已经为质能等效性提供了广泛的实验证据。
2. The mass-energy equivalence has been amply confirmed.
   质与能的相当性已被充分地证实。
3. Making use of a lot of historical materials and giving as many facts as possible, this paper remedies the above-mentioned deficiency, and expounds further on the invention of the accelerator, artificial transmutation of heavy elements and test of the mass-energy equivalence law.
   该文经过多方面搜集史料和认真研究，对此做了比较详细的说明，并且对加速器的发明过程及其对重元素人工嬗变和质能等当定律的验证做了进一步的阐述。

noun

1. (physics) the principle that a measured quantity of mass is equivalent (according to relativity theory) to a measured quantity of energy