“polonium-beryllium neutron source”的概念、定义、翻译、参考文献-科学参考

单词	polonium-beryllium neutron source
释义	polonium-beryllium neutron source Encyclopedia 理学原子核释 polonium-beryllium neutron source钋-铍中子源利用钋-210（210Po）衰变时放出的α粒子去轰击铍（Be）核发生(α,n)核反应，从而放出中子的装置。是α中子源的一种。
随便看	crossed-field crossed functor crossed grating crossed-grating antenna crossed homomorphism crossed hyperbolic rotation crossed isomorphism crossed ladders problem crossed ladders theorem crossed lens crossed-loop antenna crossed module crossed molecular beam crossed multiplication crossed Nicol prism crossed Nicols crossed polarizer crossed polarizers crossed prism graph crossed product crossed product algebra crossed seas crossed trough cross efficiency evaluation cross elasticity

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