| 单词 | 原子 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔Anaxagoras〕Greek philosopher who correctly explained solar eclipses and believed matter to be composed of atoms.阿那克萨哥拉：古希腊哲学家，对日蚀做过正确解释并相信物质由原子组成美国传统〔atomic clock〕An extremely precise timekeeping device regulated in correspondence with a characteristic invariant frequency of an atomic or molecular system.原子钟：一种极其精确的计时系统，因其频率与原子或分子显著不变的频率相一致来控制美国传统〔atomic theory〕The physical theory of the structure, properties, and behavior of the atom.原子论：关于原子的结构、特征及运动的物理学理论美国传统〔atomic veteran〕A former member of the armed forces who was exposed to radioactivity during the testing or use of atom bombs in or after World War II.原子部队：二战中或二战之后，在原子弹的试验或应用过程中暴露于原子射线的武装部队的组成人员美国传统〔atomistic〕Of or having to do with atoms or atomism.原子（论）的：属于或关于原子或原子论的美国传统〔atomize〕To subject to bombardment with atomic weapons.用原子弹轰炸：用原子武器轰炸某物美国传统〔axis〕One of three or four imaginary lines used to define the faces of a crystal and the position of its atoms.晶轴：用于决定水晶表面和它的原子位置的三、四条假想线中的一条美国传统〔a〕A molecule consists of two or more atoms.每个分子由两个或多个原子组成。麦克米伦高阶〔balance〕We can balance the equation by multiplying the different atoms and molecules.我们可以通过增加不同原子和分子的个数来配平等式。外研社新世纪〔bombard〕To irradiate (an atom).轰击：放射（原子）美国传统〔bonding〕In graphite sheets, carbon atoms bond together in rings.石墨层中的碳原子相互连接形成碳环。柯林斯高阶〔bonding〕The molecule contains four carbon atoms arranged in a ring with a triple bond between two of them.这个分子包含四个呈环状排列的碳原子，每两个碳原子之间形成一个三价键。柯林斯高阶〔bond〕In graphite sheets, carbon atoms bond together in rings.石墨层中的碳原子相互连接形成碳环。外研社新世纪〔boride〕A binary compound of boron with a more electropositive element or radical.硼化物：硼和带正电荷的元素或原子团形成的二元化合物美国传统〔carbocyclic〕Having a ring composed exclusively of carbon atoms, as benzene.碳环的：有一个仅由碳原子组成的环的，如苯美国传统〔charge〕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。英汉大词典〔compound〕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。牛津搭配〔diatomic〕The symbol for diatomic nitrogen is N2.双原子的氮分子符号是N2。剑桥高阶〔diazo〕Relating to or containing a pair of bonded nitrogen atoms, one of which is also bonded to an aromatic hydrocarbon.重氮的：关于或含有一对结合的氮原子的，其中一个还结合一个芳（旋）烃美国传统〔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〔dislocation〕Chemistry An imperfection in the crystal structure of a metal or other solid resulting from an absence of an atom or atoms in one or more layers of a crystal.【化学】 位错：由晶位的一层或多层没有原子而导致金属或其他固体的晶体结构的不完美美国传统〔displacement〕Chemistry A reaction in which an atom, a radical, or a molecule replaces another in a compound.【化学】 置换：化合物中一个原子、原子团或分子代替另一个的反应美国传统〔dyad〕Chemistry A divalent atom or radical.【化学】 二价原子：二价的原子或基美国传统〔empirical formula〕A chemical formula that indicates the relative proportions of the elements in a molecule rather than the actual number of atoms of the elements.成分式：表示在一个分子中各元素的相对比例而非元素的实际原子数的化学式美国传统〔epoch〕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。牛津搭配〔ether〕Any of a class of organic compounds in which two hydrocarbon groups are linked by an oxygen atom.醚，乙醚：一类有机化合物，它们以一个氧原子与两个包含在烃基中的碳原子相连接为特征美国传统〔excimer〕A diatomic molecule existing in an energy level above the ground state.激态原子：以激发态存在的二聚体美国传统〔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〔field-ion microscope〕A microscope that produces an image of the atoms on a metal surface by means of ions formed in a high-voltage electric field.场用显微镜：通过高压电场中形成的离子在金属表面展现原子图象的显微镜美国传统〔firepower〕There is no shortage of financial firepower to fund atomic research.原子能研究不愁没有财力资助。朗文当代〔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〔gamma〕Chemistry The third position from a designated carbon atom in an organic molecule at which an atom or a radical may be substituted.【化学】 第三位：在有机分子中从一指定碳原子后第三个位置，在此一个原子或原子团可能被替代美国传统〔halocarbon〕A compound, such as a fluorocarbon, that consists of carbon and one or more halogens.卤烃：一种化合物，如碳氟化合物，由一个碳原子同一个或多个卤原子组成美国传统〔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〔heterocyclic〕Containing more than one kind of atom joined in a ring.异环的：含有结成一圆环的不止一种的原子的美国传统〔hexose〕Any of various simple sugars, such as glucose and fructose, that have six carbon atoms per molecule.己糖：每个分子中有六个碳原子的几种初级的单糖之一，如葡萄糖和果糖美国传统〔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〔hydrogenolysis〕The breaking of a chemical bond in an organic molecule with the simultaneous addition of a hydrogen atom to each of the resulting molecular fragments.分解氢：一个有机体分子中的化学键的断裂，同时给每个产生的分子分裂物加一个氢原子美国传统〔imprimatur〕His calculations and conclusions bear no imprimatur of the Atomic Energy Commission.他的计算和结论均未得到原子能委员会的认可。英汉大词典〔information〕They continue to withhold important information about their nuclear programme.他们继续隐瞒有关其原子能计划的重要情报。外研社新世纪〔instrumentation〕Now with this particular piece of instrumentation, you can actually spot individual carbon atoms.现在利用这件特定的仪器,就可以真正观察到单个碳原子了。柯林斯高阶〔liberate〕Nuclear energy is liberated as a result of nuclear fission.原子能因核裂变而释放出来了。21世纪英汉〔likewise〕The V2 was not an ordinary weapon: it could only be used against cities. Likewise the atom bomb.V2火箭并非普通武器：它只能用于对付城市。原子弹也是这样。柯林斯高阶〔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〔metallurgy〕The study of metals and their properties in bulk and at the atomic level.冶金学：以金属及其聚合时和呈原子状态时的特性为研究对象的学科美国传统〔microphysics〕The physics of molecular, atomic, nuclear, and subnuclear systems.微观物理学，粒子物理学：研究分子、原子，核和亚核系统的物理学美国传统〔molecular formula〕A chemical formula that shows the number and kinds of atoms in a molecule.分子式：表明一个分子中原子的数量和种类的化学式美国传统〔molecule〕The molecules of oxygen gas contain just two atoms.氧分子中只有两个原子。朗文当代〔monatomic〕Helium is a monatomic gas.氦是单原子气体美国传统〔monoacid〕Having only one hydroxyl group to react with acids.一元酸的：只有一个可与酸发生反应的氢原子团的美国传统〔multiplet〕A spectral line having more than one component, representing slight variations in the energy states characteristic of an atom.多重谱线：一种具有几种部分的谱线，用以代表原子量态特性的细微差别美国传统〔mushroom〕The cloud of radioactive ash mushroomed from the atomic bomb.原子弹爆炸时放射性尘埃形成的云呈蘑菇状升腾英汉大词典〔nonnuclear〕Not causing, involving, or operated by nuclear energy.非核的：不是由原子能引起、涉及或不依靠原子能运转的美国传统〔nuclear emulsion〕Any of several photographic emulsions used to detect and visually display the paths of charged subatomic particles, especially of charged cosmic ray particles.核乳胶：照片的感光乳剂，用于侦测并形象地显示带电亚原子微粒，尤指带电宇宙射线微粒的路径美国传统〔nucleus〕Chemistry A group of atoms bound in a structure, such as a benzene ring, that is resistant to alteration in chemical reactions.【化学】 环（晶）核：包围在抗化学反应变化的结构中的一组原子，如苯环美国传统〔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〔open chain〕An arrangement of atoms that does not form a ring, as in silicon compounds and various carbon compounds, such as aliphatic hydrocarbons.开链：一种在结构式中可由中端点不连接成一个环的链描述原子的排列，如在硅化合物和多种碳化合物中，如脂肪族碳氢化合物美国传统〔organometallic〕Of, relating to, or constituting an organic compound containing a metal, especially a compound in which a metal atom is bonded directly to a carbon atom.金属有机的：属于、关于或组成一种有机化合物，该化合物包含一种金属，特别是金属原子直接与碳原子相连的化合物美国传统〔oxide〕A binary compound of an element or a radical with oxygen.氧化物：一种元素的二元化合物或氧原子团美国传统〔oxide〕Atoms of iron in the nail combine with atoms of oxygen from the air to form molecules of iron oxide, or rust.钉子里的铁原子与空气中的氧原子结合后形成氧化铁分子，也就是锈。柯林斯高阶〔particle physics〕The branch of physics that deals with subatomic particles.粒子物理学：研究亚原子粒子的物理学分支学科美国传统〔penetrate〕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。英汉大词典〔periodic table〕A tabular arrangement of the elements according to their atomic numbers so that elements with similar properties are in the same column.周期表：元素根据原子数安排的表，使有相似特性的元素在同一行中美国传统〔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〔polyatomic〕Of or relating to a molecule that has three or more atoms as constituents.多原子的：有三个或更多的原子作为其构成部分的分子的，或与之有关的美国传统〔polysulfide〕A sulfide compound containing at least two sulfur atoms per molecule.多硫化物：每个分子中至少含有两个硫原子的一种硫化物美国传统〔preatomic〕Of, relating to, or being the time preceding the use of, existence of, or capability for atomic energy or weapons.核时代以前的：原子能或核武器的存在、运用或制造之前的时间的、与核时代以前相关的或属于核时代以前的美国传统〔primary〕Having a carbon atom attached solely to one other carbon atom in a molecule.一代的：分子一个碳原子点和另外一个碳原子相连的美国传统〔pump〕Physics Electromagnetic radiation used to raise atoms or molecules to a higher energy level.【物理学】 电磁辐射能：用来将原子或分子提升到较高能级的电磁辐射美国传统〔quantum mechanics〕Quantum theory, especially the quantum theory of the structure and behavior of atoms and molecules.量子力学：量子理论，尤指原子及分子结构与运动的量子理论美国传统〔radiation〕Many servicemen suffered radiation sickness after the early atomic tests.很多军人在早期的原子弹试爆后患上了辐射病。剑桥高阶〔radical〕Symbol R An atom or a group of atoms with at least one unpaired electron.符号 R 原子因，基团：至少有一个游离电子的原子或一组原子美国传统〔reactor vessel〕The protective containment vessel surrounding the nuclear fission core in a nuclear reactor.反应器容器：在原子反应炉中，包围着原子分裂核心的保护性封闭容器美国传统〔reduce〕To decrease the valence of (an atom) by adding electrons.降低原子价：通过加入电子来减少（原子的）电子价美国传统〔respect〕They may differ only in respect of two hydrogen atoms.它们可能仅仅存在两个氢原子的差异。外研社新世纪〔salt〕A chemical compound formed by replacing all or part of the hydrogen ions of an acid with metal ions or electropositive radicals.盐类：由金属离子或正电原子团替代酸中所有或部分的氢离子而得到的化合物美国传统〔secondary〕Chemistry Characterized or formed by replacement of two atoms or radicals within a molecule. Used of a compound.【化学】 转化而成的：由一个分子内两个原子或电极替代所形成的，或有此特点的。用于化合物美国传统〔stereoisomerism〕Isomerism created by differences in the spatial arrangement of atoms in a molecule.立体异构现象：因为原子在分子中排列不同而造成的异构现象美国传统〔subatomic particle〕Any of various units of matter below the size of an atom, including the elementary particles and hadrons.亚原子粒子：尺寸小于原子的各种物质单位之任何一种，包括基本粒子及强子美国传统〔subatomic〕Having dimensions or participating in reactions characteristic of the constituents of the atom.亚原子的：具有亚原子结构之尺寸的，参与亚原子结构之反应的美国传统〔supersymmetry〕A hypothetical symmetry that relates fermions to bosons and gravitational force to forces that operate on the subatomic level.超对称性：将费密子与玻子相联系以及将万有引力与亚原子作用的力相联系的假想对称性美国传统〔tame〕The reactor was built for tame atomic energy use.这座反应堆是为安全使用原子能而建造的。英汉大词典〔tetrabasic〕Containing four replaceable hydrogen atoms in a molecule. Used of acids.四元的：分子中含有四个可被替代的氢原子的，用于酸美国传统〔tetroxide〕A chemical compound containing four oxygen atoms per molecule.四氧化物：每分子含有四个氧原子的化合物美国传统〔thiazine〕Any of a class of organic chemical compounds containing a ring composed of one sulfur atom, one nitrogen atom, and four carbon atoms, used in making dyes.硫氮杂苯：包括一个硫原子、一个氮原子和四个碳原子的环状有机化合物的任一种，用于制作染料美国传统〔vacancy〕A crystal defect caused by the absence of an atom, an ion, or a molecule in a crystal lattice.空位：晶体里由于缺少一个原子、一个离子或一个分子造成晶格位置缺陷美国传统〔valence electron〕An electron in an outer shell of an atom that can participate in forming chemical bonds with other atoms.价电子：参与或其他原子形成化合键的原子外层电子壳层的电子美国传统〔valence shell〕The outermost shell of an atom consisting of the valence electrons.价电子层：由价电子组成的原子的最外壳层美国传统〔vibronic〕Of or relating to changes in molecular energy states associated with the vibrational energy of atoms.电子振动的：分子能量状态改变的或与此有关的，与原子的振动能量相关美国传统A benzene molecule is made of six carbon atoms joined in a ring, each one with a hydrogen atom attached.苯分子由六个链状碳原子组成，每个碳原子带一个氢原子。剑桥国际A molecule of carbon dioxide (CO2) has one carbon atom and two oxygen atoms.二氧化碳的分子有一个碳原子和两个氧原子。剑桥国际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。译典通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Over 200 000 Japanese people were killed or wounded when two atom bombs were dropped on Hiroshima and Nagasaki in 1945. 1945 年在广岛和长崎扔下的两颗原子弹造成20多万日本人的伤亡。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 explosion of the Russian atomic bomb broke the American monopoly on nuclear weapons. 俄国原子弹的爆炸打破了美国对核武器的垄断。译典通The reactor was built for tame atomic energy use. 这座反应堆是为原子能的安全使用而建造的。译典通These subatomic particles are thought to be indivisible into smaller particles.这些亚原子粒子被认为不可能分成更小的粒子。剑桥国际 |
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