质子轰击 zhìzǐhōngjī proton bombardment Origin Definitions Defs Strokes Stroke Words Sentences Sents 质子 質子 zhìzǐ proton a positively charged particle that forms part of the nucleus of an atom轰击 轟擊 hōngjī noun to bombard (physics) to strike a target with high-energy particles or radiation in physics or chemistry experiments