“neutron howitzer”的概念、定义、翻译、参考文献-科学参考

单词	neutron howitzer
释义	neutron howitzer [`nü´trän `hau̇·ǝt·sǝr] ^NUCLEONICS A device which produces a neutron beam; consists of a neutron source contained in a block of moderating material with a small hole from the source to the surface of the block, from which the beam emerges.
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