The acquisition of field emission negative ion and its time-of-flight Spectra (TOPS) brings up to negative ion atom probe invention.
场致发射负离子及其飞行时间谱的获得导致场致发射负离子原子探针的发明。
Traditional fuel cells work by using a catalytic material to oxidise a fuel, such as hydrogen, turning it into a positively charged ion and a negative electron.
传统的燃料电池使用催化材料来氧化燃料，比如氢气，使之转变为一个带正电的离子与一个电子。
Seen here on June 13th from southern New Mexico, this Comet McNaught's long ion tail sweeps across the telescopic field of view (a negative image is inset).
这是6月13日新墨西哥南部所见，麦克·诺特的长离子尾扫过望远镜的视野，插图是负片。
The first commercial lithium-ion battery, launched by Sony in 1991, was a rocking-chair design that used cobalt oxide for the positive electrode, and graphite (carbon) for the negative one.
1991年，Sony发布了第一款商用锂离子电池，它采用的就是摇椅式设计，其中用钴氧化物做正极，石墨（碳 ）做负极。
Let's purify air with a negative ion generator.
我们用负离子发生器净化一下空气吧。
What is the use of these same negative ion generators?
这些所谓负离子发生器有什么用呢?。
The hydroxyl ion has a negative charge.
氢氧根离子有一个负电荷。
The hydroxyl ion has a negative charge .
氢氧根离子有一个负电荷。
A chemical bond in which one atom loses an electron to form a positive ion and the other atom gains to electron to form a negative ion.
一个原子失掉一个电子来形成一个正离子，另一个原子得到一个电子来形成一个负离子的化学键。
The plasma source ion implantation device consists of pulsed negative high voltage power, hot cathode arc discharge system, vacuum chamber and target stage, vacuum system and monitor system.
等离子体源离子注入装置由脉冲负高压源系统、热阴极弧放电系统、真空室及样品台、真空系统和监测系统等五部分组成。
The new method in the determination of negative ion surface-active agent is introduced, comparing with methylene blue method, it have merits of simple operation step and little dosage.
介绍了水中阴离子表面活性剂测定新方法，该法与亚甲蓝法比较，具有操作步骤简单，萃取剂用量少的优点。
This kind of material can be used as negative electrode material of diversified lithium ion battery widely, and as electrode material of capacitor.
该类材料可以广泛地作为各种锂离子电池的负极材料，并可以作为电容器的电极材料。
Cation: an ion or group of ions having a positive charge and characteristically moving toward the negative electrode in electrolysis.
阳离子：带有正电荷的一个或一群离子，特点为在电解中向阴极运动。
The sensitivity for the measurement of chloropicrin by the modes of positive ion and negative chemical ionization was compared.
并比较了正离子化学电离方式和负离子化学电离方式测定氯化苦的灵敏度。
The gain of electrons by an atom leads to the formation of a negative ion.
原子获得了电子导致了负离子的形成。
Cellotriose and cellotetraose were analyzed by electron pray ionization mass spectrometry(ESI-MS) with negative ion mode.
在负离子模式下对纤维三糖和纤维四糖进行电喷雾电离质谱（ESI-MS）分析。
The structures and compositions of the purified petroleum acids were characterized by using infra-red spectrum, nuclear magnetic resonance and negative-ion electrospray ionization mass spectrum.
通过红外光谱、核磁共振和负离子电喷雾质谱三种表征技术鉴定了原油中的石油酸结构和组成。
The Negative ion fibre as a new functional material.
负离子纤维作为一种新型的功能性纤维。
Adopting paraboloid model of tip surface, presented the dynamics equation of negative ion flight in tip field and solve it with numerical method.
采用针尖的旋抛物面模型，给出了表面生成的负离子在针尖场中飞行的动力学方程，并用数值方法求解。
Infrared ray and negative ion of bamboo charcoal were tested.
并测试了竹炭的红外线性能与负离子性能。
This is a negative ion aroma dispensing device, its design inspiration comes from the bionics design of irises.
这是一款负离子香味器，它的设计灵感来源于蝴蝶花的仿生设计。
Non-aqueous electrolyte secondary battery negative electrode material, making method, and lithium ion secondary battery.
非水电解质二次电池负极材料，制造方法，和锂离子二次电池。
This paper introduces a new air negative ion producer .
本文介绍了一种新型的空气负离子发生器。
Besides the ion concentration was in Correlation with the height above sea level and cosmic rays, while negative ion was not.
另外，正离子浓度和单极系数与海拔高度和宇宙射线呈正相关、负离子浓度与此无相关。
The effects of the positive and negative ion background on the discharge path are studied.
用实验方法研究了正、负离子背景对放电路径的影响。
The trajectories of the negative ions in the negative ion atom probe have been calculated for hyperboloidal tip shape.
本文基于双曲面形样品针尖，计算了负离子原子探针中负离子的飞行轨迹。
Two major performance parameters of negative ion generator are negative ion concentration and ozone concentration.
负离子发生器的两个主要性能参数是负离子浓度和臭氧浓度。
Objective To study the influence of JingCuihui negative ion life-cultivation urn on the antioxidation in aging mice.
目的探讨菁萃荟负离子养生瓮对老龄小鼠抗氧化功能的影响。
It pointed out that the negative ion DCIMS can provide very useful information for characterizing molecular ion of monosaccharides.
指出负离子解吸化学电离质谱对鉴别低碳醣的分子离子可以提供十分有用的信息。
It pointed out that the negative ion DCIMS can provide very useful information for characterizing molecular ion of monosaccharides.
指出负离子解吸化学电离质谱对鉴别低碳醣的分子离子可以提供十分有用的信息。
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