This extension of the photoelectric effect, in which one photon knocks one electron off the edge of an atom, could make physicists reconsider when light is a wave and when it's a particle.
在这种光电效应的延伸中，一个光子从原子的边缘打出一个电子，这可能要使物理学家们重新考虑光在什么情况下是波，什么情况下是粒子。
But electron microscopes use beams of electrons, instead of light.
然而电子显微镜采用电子束而不是光。
Light microscopes and transmission electron microscopes require that materials be sliced thinly, or trapped under glass before being examined.
光学显微镜和穿透式电子显微镜要求将材料切成更薄的片，或在仔细观察前将其控制在玻璃下。
In other words, the light used to observe the electron emits so much energy that its impact alters the electron's behavior.
换句话说，用于观察电子的光发出的能量大到其冲撞足以改变电子的运行方式。
So, for example, we were talking about a threshold frequency as in a minimum frequency of light that you need in order to eject an electron from a metal surface.
举个例子来说，我们谈论的临界频率是，光从金属表面逐出一个电子，所需的最小频率。
There are some basic physical properties ofthe universe, such as the charge of the electron, the precise strength ofgravity, the speed of light, etc.
宇宙有一些基本的物理性质，比如电子的带电性、重力的精确大小、光速，等等。
Resolution is still limited by the wavelength of the electron beam, but this wavelength is much smaller than that of visible light.
分辨率仍受限于电子束的波长，但此波长远小于可见光的波长。
A second of time, for instance, is now defined in terms of an electron transition of the cesium atom. And the meter is tied to the speed of light.
比如说，秒就是根据铯原子内部的电子跃迁时间来下的定义，而米的定义则和光速有关。
Ionized by energetic starlight, a hydrogen atom emits the characteristic red H-alpha light as its single electron is recaptured and transitions to lower energy states.
氢原子被高能的恒星光离子化之后，在它的单个电子重新被捕获并跃迁到低能级上时会放出典型的红色h - alpha光。
The energy of light varies across the spectrum (blue light is more energetic than red) but only a certain amount of energy is needed to knock an electron free.
光谱中光的能量是不同的(蓝光比红光更具能量)，但是只需一种确定的能量来碰触电子使其脱离。
Once light is absorbed in plant leaves, it energizes an electron which is subsequently used to support a biochemical reaction, like sugar production.
光子一旦被植物叶片所吸收，它就能激发出一个电子，该电子随后被用来为糖转化一类的生化反应提供能量。
Electron microscopy grants researchers and clinicians access to a universe that is too small to be detected using light-based microscopes.
电子显微镜让研究者和临床医生得以进入一个光学显微镜无法窥见的小宇宙。
For example, one layer contains the active material that releases an electron when it's struck by light and another layer contains the circuit that carries the current.
例如，放置活化材料的一层，当它被光照时，便会释放电子，而电路层则负责传送电子流。
One of the ways a hole can be created is for the electron to be displaced by ultraviolet light.
能够创造这种孔的方法之一是用紫外线来代替电子。
When one of the dye molecules is hit by light of sufficient energy, an electron is knocked out of it and absorbed by the titanium dioxide, before being passed out of the cell to do useful work.
一旦染料分子被有足够能量的光碰触，电子就会脱离并被二氧化钛吸收，在穿离电池之前发电。
It begins with a photon of light that produces the energy necessary to release an electron down the carrier chain.
它一开始就光子产生的光的能量要释放一个电子下跌承运人链。
These are photodetectors, band gap two electron volts, respond to visible light.
这是光电探测器，能带隙为2电子伏，当它反应于可见光。
An illustration through time-lapse film light microscope slide and electron micrograph of the activities of macrophages.
利用慢转速拍摄，萤光显微镜和电子显微照片观察巨噬细胞的活动。原版英文发音。
Unlike the speed of light or the mass of the electron, human brain power is not an eternally fixed constant.
和光速或电子的质量不同的是，人类的脑力并不是恒定不变的。
Study Design. Electron and light microscopic changes, neutrophil infiltration, and lipid peroxidation in the spinal cord and early neurologic examination were studied in rats.
研究设计：我们研究了大鼠脊索的电子和光学显微镜下改变、嗜中性粒细胞浸润和脂过氧化作用情况，同时还研究了其早期的神经系统检查情况。
The diagnostic measures of GIST include light microscopy, immunohistochemical staining, and electron microscopy.
诊断GIST的措施包括光镜、免疫组织化学、电镜检查。
Objective: we studied the relationship between structural alteration of the myocyte and function under light and electron microscope.
目的：探讨法鲁四联症心肌细胞光电镜结构的变化与其功能的关系。
In this paper, the authors review its pathological classification, its macroscopic, light microscopic and electron microscopic features, and the morphology of apoptotic cells under light microscopy.
本文阐述了肌腱病的病理分类、形态学、光镜及电镜下的特点，以及光镜下凋亡细胞的形态学特点。
Histology: the study of the structure of tissues by means of special staining techniques combined with light and electron microcopy.
组织学：以特殊的染色技术以及光学显微镜和电子显微镜检查、究组织结构的学科。
Histology: the study of the structure of tissues by means of special staining techniques combined with light and electron microcopy.
组织学：以特殊的染色技术以及光学显微镜和电子显微镜检查、研究组织结构的学科。
Stigma structure and its ATPase activity and secretion in watermelon(Citrullus lanatus)were characterized using light and transmission electron microscopes.
用光学显微镜和电子显微镜研究了西瓜柱头结构、ATP酶活性和分泌活动。
The origin, development and the ultrastructure of secretory cavities in leaf of Ginkgo biloba and its relation to the secretory products were studied under light and electron microscopes.
在光学显微镜和电子显微镜下对银杏叶片分泌腔的发生发育进程、超微结构特征及与分泌物积累的关系进行了系统研究。
The electron wouldn't penetrate because it was so light and didn't go fast enough to make up for its small weight.
电子没法穿透，因为它很轻，速度不够快，不足以弥补其很轻的重量。
The electron wouldn't penetrate because it was so light and didn't go fast enough to make up for its small weight.
电子没法穿透，因为它很轻，速度不够快，不足以弥补其很轻的重量。
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