electron
四级,六级,考研,托福,1
英[ɪ'lektrɒn]
|美[ɪ'lɛktrɑn]
日语:電子
法语:électron
德语:Elektron
韩语:전자
俄语:electrón
牛津词典
noun
- 电子
a very small piece of matter (= a substance) with a negative electric charge, found in all atoms
词形变化
中文词源
electron 电子
electro, 电。-on, 离子,来自ion.
双语例句
- Magnetic coils focus the electron beams into fine spots.
磁线圈把电子束聚焦成微小的点。
- 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。
- A new technological marvel was invented at Cambridge University in England, the scanning electron microscope.
一项科技新奇迹在英国剑桥大学诞生了——这就是扫描电子显微镜。
- An electron moving in an excited orbit'stays there only for a very short time.
电子在激发态轨道上只能逗留很短的时间。
- An electron has a negative charge, a proton has a positive charge.
电子带负电荷,质子带正电荷。
- The television receiver contain a very special sort of electron tube, called a "cathode-ray" tube.
电视接收机有一个非常特殊的电子管,称为阴极射线管。
- In this model the arrangement of bonds around the central atom is considered to depend upon how many valence-shell electron pairs.
在这个模型中,认为围绕中心原子的化学键的排列取决于价层中电子对的数量。
- The scanning electron microscope provides information on chemical composition by use of X-ray spectrometer attachments.
扫描电子显微镜能利用x射线谱仪的附件来提供化学组分的信息。
- Except for the transitional elements, valency electrons are in the outermost electron shell.
除去过渡元素外,价电子位于最外面的电子层。
- So there's one electron in each hydrogen atom.
所以每个氢原子中有两个电子。
- This is a one electron atom.
这里有一个单电子原子。
- So, if you start with sodium vapor and chlorine gas, electron transfer will occur.
所以,如果从以钠蒸汽和氯气开始,电子传递就会发生了。
- The structure and morphology of prepared materials were detected by scanning electron microscope.
采用扫描电镜时模板、复合物及聚合物的形貌和微观结构进行了观察和表征。
- The distribution and fine structure of lymphatic vessels in goat cardiac ventricles were examined by light and electron microscopy.
用光镜和透射电镜对山羊心室淋巴管的分布和微细结构进行了研究。
- The beryls were studied in this paper by using the electron microprobe analyses and back scattered-electron imaging.
利用电子探针和背散射电子成像技术对该岩脉中绿柱石进行了较系统分析。
- The influence of the beam voltage and magnet field on electron beam performance was studied.
并对电子注在不同工作电压和磁场下的质量进行了分析计算。
- A theoretical study on electron tunneling between two thin barrier separated electron waveguides is presented.
研究了耦和电子波导间的电子隧穿。
- We have the electron.
我们有了电子。
- Light microscope and electron microscope were used to observe the meat batter and the gel.
分别用光学显微镜和电子显微镜对肉糜和凝胶进行电镜观察。
- We have a helium nucleus and one electron.
我们有一个氦核和一个电子。
- Electron microscopy has revolutionized the study of crystal imperfections.
电子显微学已经革新了对晶体不完整性的研究。
- The effect of atomic size factors and electron factors on the formation of quasicrystalline was studied.
研究了原子尺寸因数和电子因素对准晶形成的影响。
- High resolution transmission electron microscopy and selected area electron diffraction were used to characterize the products.
利用高分辨透射电镜和电子衍射仪器对合成的纳米颗粒的结构进行了表征。
- This paper deals with the statistical properties about two dimensional photon gas and free electron gas.
讨论了二维光子气体和自由电子气体的统计性质。
- Well, this chlorine has taken one electron from the sulfur.
对了,这个氯从硫那里得到了一个电子。
- This paper introduces the new development of the detector used in scanning electron microscope ( SEM).
介绍了扫描电子显微镜(SEM)信号探头研究的最新成果。
- Hydrogen with an added electron.
氢得到了一个电子。
- Her recent work in electron microscopy stimulated a new line of research.
她最近的工作,在电子显微镜学上开创了一个新的研究领域。
- This paper has investigated the propagation of relativistic electron beams ( REB) in magnetized plasmas.
本文研究了相对论电子束在磁化等离子体中的传输。
- He measured the charge to mass ratio of the electron.
他测量了电子的荷质比。
语源
late 19th cent.: from electric + -on