“betatron”的概念、定义、翻译、参考文献-科学参考

单词	betatron
释义	betatron Physics A particle accelerator for producing high-energy electrons (up to 340 MeV) for research purposes, including the production of high-energy X-rays. The electrons are accelerated by electromagnetic induction in a doughnut-shaped (toroidal) ring from which the air has been removed. This type of accelerator was first developed by D. W. Kerst (1911–93) in 1939; the largest such machine, at the University of Illinois, was completed in 1950.
随便看	principle of contradiction or noncon-tradiction principle of double effect principle of double negation principle of equivalence principle of excluded fourth principle of excluded middle principle of excluded third principle of explosion principle of included fragments principle of indifference principle of individuation principle of insufficient reason principle of least action principle of least privilege principle of mathematical induction principle of moments principle of non-contradiction principle of non-triviality principle of parsimony principle of plenitude principle of sufficient reason principle of superposition principle of the excluded middle principle of uniformitarianism principle of utility

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