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張明口中的“科學”指的是裝配在武威重離子中心的我國首檯自主知識產權的醫用(yi yong)重離子加速器。所謂重離子，是指質量數大於4（即原子序數大於2）的原子失去部分或全部電子後形成的帶電(dai dian)...