| 单词 | electrons |
| 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〔HIT〕Electrons move around quickly, hitting and then rebounding off each other. 电子高速移动，互相撞击反弹。朗文写作活用〔acceptor〕The atom that contributes no electrons to a covalent bond.受体：没有给共价键提供电子的原子美国传统〔acid〕A molecule or ion that can combine with another by forming a covalent bond with two electrons of the other.分子，离子：可通过两个电子形成共价键而结合在一块的分子或离子美国传统〔base〕A substance that provides a pair of electrons for a covalent bond with an acid.共价化合物：能够提供一对电子给一个酸形成共价键的化合物美国传统〔behave〕Under certain conditions, electrons can behave like waves rather than particles.在一定条件下，电子可以作波状运动，而不是粒子状运动。柯林斯高阶〔beta ray〕A stream of beta particles, especially of electrons.β射线：一束β粒子，主要为电子美国传统〔betatron〕A magnetic induction electron accelerator capable of accelerating electrons to energies of several hundred million electron volts.β加速器：一种磁感应电子加速器，能将电子加速至产生几百万电子伏美国传统〔bombard〕Part of the sample is then bombarded by electrons.有部分样品后来被电子撞击。麦克米伦高阶〔carbanion〕An anion in which carbon carries a negative charge and an unshared pair of electrons.负碳离子，阴碳离子：一种阴离子，其中碳带一个负电荷和一个非共用电子对美国传统〔cathode ray〕A stream of electrons emitted by the cathode in electrical discharge tubes.阴极射线：电子发射管的阴极放出的电子流美国传统〔cathode ray〕One of the electrons that is emitted in a stream from a cathode-ray tube.高速电子：阴极射线管放出的电子流中的电子美国传统〔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〔collector〕Electronics An electrode in an electron tube that collects electrons which have finished carrying current.【电子学】 集流器：电子管中收集已完成电流循环电子的电极美国传统〔covalent bond〕A chemical bond formed by the sharing of one or more electrons, especially pairs of electrons, between atoms.共价键：原子间共用一个或多个电子，尤指成对电子而形成的化学键美国传统〔electron gun〕The electrode, especially in a cathode-ray tube, that produces a beam of accelerated electrons.电子枪：产生一束加速电子的电极，尤指在阴极射线管中的美国传统〔electron lens〕Any of various devices that use an electric or a magnetic field to focus a beam of electrons.电子透镜：通过一个电场或一个磁场来使一束电子会聚的一种装置美国传统〔electron pair〕Two electrons functioning or regarded as functioning in concert, especially two electrons that form a nonpolar covalent bond between atoms.电子对：协调运行或被认为是协调运行的两个电子，尤指在原子间形成非极性共价键的两个电子美国传统〔electronegative〕Tending to attract electrons to form a chemical bond.负电极的：有吸引电子以形成化学键的倾向的美国传统〔electronic〕Of or relating to electrons.电子的：电子的或关于电子的美国传统〔electrophile〕A chemical compound or group that is attracted to electrons and tends to accept electrons.亲电子试剂：一种化学复合物或原子团，被电子吸引并具有吸引电子的倾向美国传统〔electropositive〕Tending to release electrons to form a chemical bond.有释放电子以形成化学键倾向的美国传统〔electrovalence〕Valence characterized by the transfer of electrons from atoms of one element to atoms of another during the formation of an ionic bond between the atoms.电价：在原子间形成离子键的过程中，由电子从一种元素的原子转移到另一种元素的原子所表示的价美国传统〔field emission〕The emission of electrons from the surface of a conductor, caused by a strong electric field.场发射：从导体表面电子的发射，由强大电场引起美国传统〔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〔free radical〕An organic compound in which some of the valence electrons are unpaired, occurring as a normal byproduct of oxidation reactions in metabolism.自由基化合物：其中有一些价电子未配对的一种有机化合物，作为新陈代谢中氧化反应的正常副产物而存在美国传统〔heavy〕Protons are nearly 2,000 times as heavy as electrons.质子的质量几乎是电子的2,000倍。外研社新世纪〔heavy〕Protons are nearly 2000 times as heavy as electrons.质子的质量几乎是电子的2,000倍。柯林斯高阶〔image tube〕An electronic device that uses a photoelectric surface to release electrons and ultimately produce an image.影像管，映像管：一种电子仪器，通过光电性表面放出电子而得以最终成像美国传统〔ion〕An atom or a group of atoms that has acquired a net electric charge by gaining or losing one or more electrons.离子：由获得或失去一个或更多的电子而获取了一个净电荷的一个原子或一组原子美国传统〔isoelectronic〕Having equal numbers of electrons or the same electronic configuration.等电子的：有相同的电子数目的或有相同的电子构型的美国传统〔magnification〕The electron microscope uses a beam of electrons to produce images at high magnifications.电子显微镜利用电子束形成高倍影像。外研社新世纪〔magnification〕The electron microscope uses a beam of electrons to produce images at high magnifications.电子显微镜利用电子束形成高倍影像。柯林斯高阶〔metallic bond〕The chemical bond characteristic of metals, in which mobile valence electrons are shared among atoms in a usually stable crystalline structure.金属键：金属所特有的化学键，金属键中的游离价电子被分配在处于通常稳定的金属晶体结构的原子中美国传统〔negatively〕As these electrons are negatively charged they will attempt to repel each other.因为这些电子都带负电，它们将会互相排斥。柯林斯高阶〔negatively〕As these electrons are negatively charged, they will attempt to repel each other.由于这些电子都带负电荷的, 所以会相互排斥。外研社新世纪〔negative〕Electrons are negative.电子带负电。外研社新世纪〔negative〕Relating to or designating a body having an excess of electrons.阴电荷的：关于或表明有过量电子的躯体的美国传统〔neutral〕Atoms consist of positively-charged protons, negatively-charged electrons and neutral particles called neutrons.原子由带正电的质子、带负电的电子和称为中子的不带电粒子组成。剑桥高阶〔nucleophile〕A chemical compound or group that is attracted to nuclei and tends to donate or share electrons.亲核试剂：受核吸引并易于转移或共用电子的化学化合物美国传统〔octet〕A set of eight valence electrons in an atom or ion, forming a stable configuration.八重态：在一个原子或离子中，形成稳定组态的一组八个化合价电子美国传统〔oxidation-reduction〕A chemical reaction in which an atom or ion loses electrons to another atom or ion.氧化还原反应：一个原子或离子的电子转移到另一个原子或离子的一种化学反应美国传统〔oxidation〕A reaction in which the atoms in an element lose electrons and the valence of the element is correspondingly increased.氧化：一种某个元素的原子失去电子后它的原子价相应增加的反应美国传统〔oxidize〕To increase the positive charge or valence of (an element) by removing electrons.氧化：通过除去一个元素电子来增加电性或原子价美国传统〔particle〕Electrons are atomic particles.电子是原子粒子。剑桥高阶〔photoelectric effect〕Ejection of electrons from a substance by incident electromagnetic radiation, especially by visible light.光电效应，光电现象：由附带的电磁辐射引起的一种物质的电子散射，尤指可见光美国传统〔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〔quantum electrodynamics〕The quantum theory of the properties and behavior of electrons and the electromagnetic field.量子电动力学：有关电子和电磁场的性质及运转的量子理论美国传统〔quark〕Atoms are made up of smaller particles - protons, neutrons and electrons - some of which are made up of even smaller ones, called quarks.原子是由更小的粒子，即质子、中子和电子组成的，其中有些是由更小的叫做夸克的粒子构成的。剑桥高阶〔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〔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〔reducing agent〕A substance that chemically reduces other substances, especially by donating an electron or electrons.还原剂：以化学方法还原其它物质的物质，特别是通过赋予被还原物一个或数个电子美国传统〔reduction〕A decrease in positive valence or an increase in negative valence by the gaining of electrons.还原：通过获得电子而造成正价电子减少和负价电子增多美国传统〔repelled〕As these electrons are negatively charged they will attempt to repel each other.因为这些电子都是带负电荷的，它们会互相排斥。柯林斯高阶〔respiratory enzyme〕An enzyme, such as oxidase, that transfers electrons from its substrate to molecular oxygen during cellular respiration.呼吸酶：一种酶，例如氧化酶，它在细胞呼吸中将基质电子由其酶化物转化为分子氧美国传统〔scan〕A single sweep of the beam of electrons across a television screen.扫掠：电子束在电视屏幕上的扫动美国传统〔scan〕To move a finely focused beam of light or electrons in a systematic pattern over (a surface) in order to reproduce or sense and subsequently transmit an image.扫描：以系统的方式移动高度集中的光或电子束使之掠过（一个表面），目的是再现或感知并达到传递图象美国传统〔secondary emission〕Emission of electrons from the surface of a substance as a result of bombardment by electrons or ions.二次发射：电子或中子爆炸时产生物质表面的电子发射美国传统〔space charge〕The excess of electrons or ions in a given volume.空间电荷：一定限度内过量的电子或离子美国传统〔target〕A usually metal part in an x-ray tube on which a beam of electrons is focused and from which x-rays are emitted.X射线靶，对阴极：X射线管中通常为金属的部分，该部分被一束电子所瞄准并释放出X射线美国传统〔thermionic emission〕Emission of thermions, especially electrons, from a conducting material at high temperatures.热离子发射：热离子发射，尤指电子在高温时由导电物质发射出来美国传统〔thermionic tube〕An electron tube in which the source of electrons is a heated electrode.热离子管：电子源是加热电极的电子管美国传统〔vacuum tube〕An electron tube from which all or most of the gas has been removed, permitting electrons to move with low interaction with any remaining gas molecules.真空管：一种内部空气全部或部分抽空的电子管，从而使电子在不受或少受空气分子的干扰下运动美国传统〔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〔valence〕The combining capacity of an atom or a radical determined by the number of electrons that it will lose, add, or share when it reacts with other atoms.化合价，原子价：原子或原子团与其它原子结合的能力是由它在与其它的原子结合时所丢失、增加或共享的电子的数目决定的美国传统〔whole〕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。柯林斯高阶〔x-ray tube〕A vacuum tube containing electrodes that accelerate electrons and direct them to a metal anode, where their impacts produce x-rays.X射线管：一种含电极的真空管，它能使电子束加速并将其指向金属阳极而产生X射线美国传统Atoms consist of positively-charged protons, negatively-charged electrons and neutral particles called neutrons.原子由带正电荷的质子、带负电荷的电子和称为中子的不带电微粒构成。剑桥国际 |
| 随便看 |
英语例句辞典收录了559068条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。