单词	axion
释义	axion /ˈaksɪɒn / noun Physics A hypothetical subatomic particle postulated to account for the rarity of processes which break charge-parity symmetry.Or another candidate is an even more exotic particle called the axion.... This has helped to promote particle-DM, with candidates such as axions, neutralinos and other cold DM particles, as well as warm DM, and self-interacting DM, whose nature is not even specified. Axions, if they exist at all, do so in our ordinary dimensions, but they are stable neutral particles. Origin 1970s: from axial + -on.
随便看	operating budget operating crew operating instructions operating manual operating profit operating room operating system operating table operating theatre operating voltage operation operational operational amplifier operational area operational expenditure operationalisable operationalisation operationalise operationalism operationalist operationality operationalizable operationalization operationalize operationally

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