Polonium-210 occurs naturally, but scientists say the high concentrations found in the Litvinenko case indicate production at a nuclear reactor, or a particle accelerator.

钋- 210是自然存在的物质，但科学家们说，利特维年科一案中发现的高浓度显示，是核反应堆、或者是例子加速器生产的。

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The application work which has been done and can be done in the nuclear physics and nuclear astrophysics using accelerator mass spectrometry is reviewed.

介绍了利用加速器质谱技术在核物理与核天体物理中的应用研究工作。

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Pulse power with fast rise time technology was applied in many fields such as nuclear physics, electron beam, accelerator, laser, HPM etc.

高功率快脉冲技术在核物理技术、电子束、加速器、激光、HPM现代科学技术领域都有广泛的应用。

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Nor did he have much luck with his plan to build the world's most powerful accelerator for nuclear research.

ECONOMIST: Sir Mark Oliphant

Buchholz, a physicist and a nuclear engineer, is an expert at something called accelerator mass spectrometry, an extraordinarily precise method of determining the chemical composition of materials.

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