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Scientists are working to harness the power of the atom.科学家们正在研究如何利用原子能。An atom is the smallest indivisible particle of matter.原子是物质不可分割的最小粒子。At the center of the atom is the nucleus.在原子的中心是原子核。The flu took every atom of strength I had.我得了流感，身上一点力气都没了。It was a long time before scientists could penetrate the mystery of the atom.很久以后科学家才洞悉原子的奥秘。Inside the atom there is a nucleus composed of neutrons and protons. The nucleus is crucial to the making of nuclear weapons.一个原子里面有由中子和质子组成的核，对制造核武器很重要。The splitting of an atom sets off an explosive chain reaction.原子分裂可造成一触即发的连锁反应。There is not an atom of truth in what he said.他所说的话没有丝毫真实性。An atom itself is a complete whole, with its electrons, protons and neutrons and other elements.一个原子本身就是一个完整的整体，包括电子、质子、中子及其他元素。He hasn't an atom of sense.他毫无理智。The dropping of the first atom bomb marked a new epoch in warfare.第一颗原子弹的投掷标志着战争进入了新纪元。There is not an atom of truth to what he said.他说的话没一句是真的。There isn't an atom of truth in it.那里面没有丝毫的真实性。In nuclear physics, the scientist is interested in the behaviour within the nucleus of an atom.在核物理学中，科学家关心的是原子核内部的活动情况。If one or more electrons be removed, the atom is said to be positively charged.如果原子失去了一个或多个电子，我们就说原子带正电荷。He patented the idea that the atom could be split.他的原子裂变观点获得了专利。A neutron is simply a neutral particle in the nucleus of an atom.中子就是原子核里不带电的粒子。What happens when an atom splits?原子分裂会出现什么情况?Neutrons and protons are bound together in the nucleus of an atom.中子和质子在原子核内结合在一起。The nucleus of a deuterium atom contains a proton and a neutron.重氢的原子核由一个质子和一个中子组成。Energy is locked up in the atom.能量被锁藏于原子内。Dalton believed that the simplest compound of two elements must have one atom of each.道尔顿认为由两种化学元素组成的最简单化合物必须含有每种元素的一个原子。He couldn't produce an atom of evidence.他一点证据也拿不出。For centuries the atom was regarded as infrangible.有好几个世纪，原子一直被认为是不可分的。 |