| 单词 | 原子核 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔Bohr theory〕An early model of atomic structure in which electrons travel around the nucleus in a number of discrete stable orbits determined by quantum conditions.玻尔理论：早期关于原子结构的模型，在其中电子在由量子条件决定的为数众多的分离的稳定轨道上围绕原子核运行美国传统〔MIDDLE〕At the center of the atom is the nucleus. 在原子的中心是原子核。朗文写作活用〔Mössbauer effect〕The recoilless emission of gamma rays by radioactive nuclei of crystalline solids, and the subsequent absorption of the emitted rays by other nuclei.莫士包效应：由晶体状物质的放射性原子核产生的γ射线发出的无后坐力辐射，以及放射线被其他原子核的随后吸收美国传统〔alpha decay〕The radioactive decay of an atomic nucleus by emission of an alpha particle.衰变：放射一个α粒子而导致的原子核的放射性衰变美国传统〔alpha particle〕A positively charged particle, indistinguishable from a helium atom nucleus and consisting of two protons and two neutrons.α粒子：与氦原子核难以区分的带正电的粒子，包括两个质子和两个中子美国传统〔atomic number〕The number of protons in an atomic nucleus.原子序数：原子核中所含的质子数目美国传统〔beta decay〕The radioactive decay of an atomic nucleus accompanied by emission of a beta particle.β衰变：伴随β粒子释放的原子核放射性衰变美国传统〔binding energy〕The net energy required to decompose a molecule, an atom, or a nucleus into its components.结合能：把分子、原子或原子核分解成其组成部分所需要的净能量美国传统〔binding energy〕The net energy required to remove an atomic electron to an infinitely remote position from its orbit.结合能：把原子核内的电子从其轨道移至无限远所需要的净能量美国传统〔capture〕Physics The phenomenon in which an atom or a nucleus absorbs a subatomic particle, often with the subsequent emission of radiation.【物理学】 俘获：一种原子或原子核吸收亚原子粒子的现象，随后常伴有辐射现象美国传统〔cold fusion〕A hypothetical form of nuclear fusion occurring without the use of extreme temperature or pressure.低温核融合：在没有使用极端温度或压力的情况下产生的原子核聚变假设形式美国传统〔denature〕Physics To add nonfissionable matter to (fissionable material) so as to prevent use in an atomic weapon.【物理学】 使（核材料）中毒：（向可裂变材料中）加入不可裂变物质以防止（这种可裂变物质）用于原子核武器美国传统〔deuterium〕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。剑桥高阶〔deuteron〕The nucleus of a deuterium atom, consisting of a proton and a neutron, regarded as a subatomic particle with unit positive charge.氘核：氘原子的原子核，由一个质子和一个中子组成，被视为带单位正电荷的亚原子美国传统〔disintegrate〕Chemistry Physics To decompose, decay, or undergo a nuclear transformation.【化学】 【物理学】 （核的）蜕变；衰变：分解、衰变或经历原子核的突变美国传统〔disintegrate〕The nucleus disintegrated.原子核裂变了。外研社新世纪〔disintegrate〕They disintegrated the atomic nucleus by bombardment with fast particles.他们用高速粒子轰击原子核来使其发生裂变。外研社新世纪〔enter〕The principle of nuclear fission enters into the operation of a nuclear reactor.核裂变原理是原子核反应堆作用的一部分。英汉大词典〔excite〕To raise (an atom, for example) to a higher energy level.激发：将（原子核）提高到更高的一个能级美国传统〔extranuclear〕Existing or acting outside the nucleus of an atom.原子核外的：出现或行动于原子核外的美国传统〔fine structure〕Physics The splitting of spectral lines caused by the magnetic moments of orbiting electrons in the atomic nucleus.【物理学】 精细结构：由于在原子核中环绕运行电子产生磁性瞬间而引起的光谱谱线的分裂美国传统〔fusion〕Physics A nuclear reaction in which nuclei combine to form more massive nuclei with the simultaneous release of energy.【物理学】 核聚变：一种由原子核结合成更大的核，同时释放出能量的核反应美国传统〔gamma decay〕A radioactive process in which an atomic nucleus loses energy by emitting a gamma ray without a change in its atomic or mass numbers.Υ衰变：原子核的一种放射性过程，在这种过程中由于放出一个伽马射线而损失能量，但并不改变原子序数或质量美国传统〔half-life〕Physics The time required for half the nuclei in a sample of a specific isotopic species to undergo radioactive decay.【物理学】 半衰期：放射性样品的原子核经历一半放射性衰变所需要的时间美国传统〔heavy ion〕The nucleus of a heavy element. When such nuclei are caused to collide at high velocities, new elements are created.重离子：重元素的原子核，当此类原子核们引发高速碰撞，新元素便会产生美国传统〔hydrogen bomb〕An explosive weapon of enormous destructive power caused by the fusion of the nuclei of various hydrogen isotopes in the formation of helium nuclei.氢弹：一种爆炸性武器，具有极大的破坏力，这种破坏力由不同的氢同位素原子核构成氦原子核时所产生的核聚变引起美国传统〔hyperfine structure〕The splitting of a spectral line into two or more components as a result of the spin or magnetic moment of the atomic nucleus.超精细结构：由于原子核的旋转或磁力矩的结果光谱线分裂成两个或多个组元美国传统〔intranuclear〕Situated or occurring within the nucleus of an atom or a cell.核内的：位于或发生于原子核或细胞核内部的美国传统〔isotone〕One of two or more atoms whose nuclei have the same number of neutrons but different numbers of protons.同中子异荷素；等中子异位素：两个或更多其原子核含有相同数量的中子却含不同数量质子的原子中的任一个美国传统〔magneton〕The nuclear magneton, calculated using the mass of the nucleon.核磁子，用原子核的质量来计算美国传统〔meltdown〕Severe overheating of a nuclear reactor core, resulting in melting of the core and escape of radiation.熔炉：由熔解原子核及辐射的释放引起的原子核反应之极度过程美国传统〔neutrality〕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。柯林斯高阶〔neutral〕A neutron is simply a neutral particle in the nucleus of an atom.简单说, 中子就是原子核内一种不带电粒子。外研社新世纪〔nuclear physics〕The scientific study of the forces, reactions, and internal structures of atomic nuclei.核物理学：关于原子核的力，反应和内部结构的科学或学科美国传统〔nuclear reaction〕A reaction, as in fission, fusion, or radioactive decay, that alters the energy, composition, or structure of an atomic nucleus.核反应：发生在核裂变、聚变或放射性衰变等条件下的改变原子核能量、组成或结构的反应美国传统〔nuclear〕Physics Of or relating to atomic nuclei.【物理学】 原子核的或关于原子核的美国传统〔nuclear〕Using or derived from the energy of atomic nuclei; atomic.原子核能的：利用原子核能的，由原子核能中得出的；原子能的美国传统〔nucleonics〕The study of the behavior and characteristics of nucleons or atomic nuclei.核子学：研究核子或原子核变化和特点的学科美国传统〔nucleus〕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。外研社新世纪〔nucleus〕Neutrons and protons are bound together in the nucleus of an atom.在原子核里，中子和质子是结合在一起的。柯林斯高阶〔nucleus〕Physics The positively charged central region of an atom, composed of protons and neutrons and containing almost all of the mass of the atom.【物理学】 原子核：原子的正极中心部分，由质子和中子构成，几乎集中了原子的全部质量美国传统〔orbit〕The path of a body in a field of force surrounding another body; for example, the movement of an atomic electron in relation to a nucleus.力场轨道：一物体在力场中环绕另一物体运行路径，例如电子在原子核周围的运动美国传统〔planetary〕The electrons moved in planetary orbits.电子在绕原子核轨道上运动。外研社新世纪〔polarization〕Chemistry Physics The partial or complete polar separation of positive and negative electric charge in a nuclear, atomic, molecular, or chemical system.【化学】 【物理学】 极化（作用）：在一个原子核、原子、分子或化学系统中，正负电荷的部分或完全的二极分化美国传统〔provoke〕The hit may provoke the nucleus to eject a particle.这一撞击可以导致原子核射出粒子。英汉大词典〔radioactivity〕Spontaneous emission of radiation, either directly from unstable atomic nuclei or as a consequence of a nuclear reaction.自动放射：自动地发出辐射，直接源于不稳定的原子核或是作为核反应的结果美国传统〔radioactivity〕The radiation, including alpha particles, nucleons, electrons, and gamma rays, emitted by a radioactive substance.辐射：由一种放射性物质发出的辐射，包括α粒子、原子核、电子、和γ射线美国传统〔shell〕An analogous pattern of protons and neutrons within a nucleus.原子核内的质子与中子的模拟形式美国传统〔spallation〕A nuclear reaction in which many particles are ejected from an atomic nucleus by incident particles of sufficiently high energy.裂变：带有充足的高能量的外来粒子将许多粒子从原子核中排斥出的核反应美国传统〔spin〕The total angular momentum of an atomic nucleus.原子核的角动量之总和美国传统〔subnuclear〕Of or located within the nucleus of an atom; smaller than the nucleus.亚核的：原子核内的，位于原子核内的；比原子核还小的美国传统〔triton〕The nucleus of tritium, consisting of two neutrons and one proton.氘核：氘的原子核，由两个中子和一个质子组成美国传统〔uninucleate〕Having one nucleus.单核的：有一个原子核的美国传统Nuclear explosions are measured in megatons.原子核爆炸以百万吨级为单位计量。剑桥国际Scientists discovered the atomic nucleus in 1909.科学家在1909年发现了原子核。剑桥国际The nucleus of an atom consists of neutrons and protons.原子核由中子和质子构成。剑桥国际We can generate electric power by splitting atoms. 我们可以利用原子核裂变发电。译典通 |
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