plasma ['plæzmə]

plasma的基本解释

n.

血浆, 等离子体, 乳浆

plasma所属的单词分类

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与plasma相关的网络例句 [注：此内容来源于网络，仅供参考]

From the point view of product distribution, conversion of dimethyl ether and energy consumption, with RCD plasma DME conversion was higher and was hardly affected by the residence time of dimethyl ether, and hydrogen, carbon monoxide and unsaturated hydrocarbons with RCD plasma were more than those with DBD plasma.There was no liquid product with RCD plasma, but the liquid product obtained with DBD plasma consisted of aldehydes, alcohols and methoxy-containing organic compounds, for instance, formaldehyde, methyl alcohol, dimethoxy ethane and so on.Moreover, most compositions of liquid product were methoxy-containing compounds, and the liquid product selectivity was as high as 32.23%.However, energy consumption for the reaction with DBD plasma was more than that with RCD plasma.

从产物分布、转化率及能耗上看，利用RCD所获得的二甲醚的转化率高，几乎不受二甲醚停留时间的影响，且氢气、一氧化碳和不饱和烃的含量大，几乎没有液相产物，而利用DBD能获得较多的液相产物，包括一些醇、醛和含有甲氧基的有机化合物，如甲醛、甲醇和二甲氧基乙烷，且大部分组成都是含有甲氧基的化合物，液相产物的选择性高达32.23％，但是能耗较大。

The plasma ignition threshold of metal is got through experimental and numerical study. The vapour and plasma ignition times of the target are got based on the equation of heat conduction and cascade model. We suppose that the plasma is ignited when generations of new electrons are born in vapour generation time. The influence of temperature on the thermodynamics and optics parameters of material also have been considered in the model. The resulting theory has good agreement with the experiment and overseas report. A blade method to measure the laser spot is given in this paper with validation and error analysis. The plasma threshold of metals in atmosphere and water ambients both are diagnosed with the light deflection and piezoelectric transducer. A Q-switched pulsed Nd:YAG laser operating at infrared (1064nm), visible(532nm) and ultraviolet (355nm) wavelengths has been used. Al、Fe、Cu are used as targets and get a similar results with both method. Theoretical and experimental analyses are applied on the influence of wavelength on the threshold have been done, both of which have shown that the plasma threshold of metals decrease as the laser wavelength increases; The plasma threshold of metals are higher in water than in air and the pressure of the shock wave in water is five times higher than in air .

从热传导方程和雪崩电离机制出发，假设当电子增值210倍时，考虑了温度对材料热力学和光学参数的影响时，得到了气化和等离子体点燃的时间，利用该模型进行计算得到的结果与国内外报道及自行通过实验测得的阈值基本一致；提出了利用刀刃法测量激光光斑面积的方法，并通过实验进行了验证和误差分析；利用光偏转装置和压电换能器分别对空气和水中金属等离子体点燃阈值进行了实验诊断，激光器均为调Q－YAG激光器（波长1064nm，532nm，355nm，脉宽10ns），靶材分别为Al、Fe和Cu，两种测试方法得到的等离子体点燃阈值基本一致；本文从实验和理论计算两个方面讨论了波长对等离子体点燃阈值的影响，均得到了等离子体点燃阈值随著波长的增加而减小的结论；对空气中和水中不同环境下金属等离子体的点燃阈值进行了比较研究，得到了金属在水中的等离子体点燃阈值比空气中的大，且水中产生的冲击波的压强是空气中的5倍左右的结论。

Consequently the beam transmission problem is solved well. The general design curves of microwave plasma drift tube are developed by the theory and they can be used for development of the plasma microwave devices. Ion channel, as a important phenomenon in the interaction between electron beam and plasma, is first introduced into the study of PASOTRON, to replace the concept'plasma channel'used in general plasma microwave devices. A model is created to describe the channel performance. The channel is not stable, it is oscillatory and the oscillation frequency is larger than that of plasma.

作为电子束与等离子体相互作用的一个重要现象，本文首次将离子通道的概念引入到了PASOTRON的研究中，以区别常规的等离子体通道概念，并通过建立的模型推出离子通道并非一稳定规则的通道，而是具有振荡特性，振荡频率高于等离子体频率，推出了当满足一定条件时束外可能没有电子而成为纯的离子通道，这种状态对微波器件有重要的价值。

与plasma相关的网络解释 [注：此内容来源于网络，仅供参考]

plasma：血浆

组成(一) 血浆 (plasma)表3-1 包括:晶体物质溶液 (基本成份)血浆蛋白 (二) 血细胞 (blood cells)红细胞 白细胞 血小板 红细胞比容: 红细胞在血液中所占的容积百分比.男:40% 50%女:37% 48%血浆蛋白的功能:1 营养2 运输3 缓冲 4 形成胶体渗透压 (见后)5 参与机体免疫 6 参与凝血和抗凝 (见后)二、血量 (blood volume)占体重7

plasma：等离子体

把这样的气体称为"等离子体"(plasma)更为恰当,因为它主要是由相互分离的电子和质子构成,这意味着它是导电的. 因此,电场可以推动这些带电粒子沿着电力线运动,产生电流. 磁场也会对这样的带电粒子施加作用力,使它们绕着磁力线盘旋.

plasma：等离子

[投票]:对 昆山汉白精密设备有限公司 的产品 等离子(Plasma)表面清洗设备 的评价与评论* 贴子主题:对 昆山汉白精密设备有限公司 的产品 等离子(Plasma)表面清洗设备 的评价与评论*快速回复:对 昆山汉白精密设备有限公司 的产

plasma：电浆

解释得更详尽点,就是说中性粒子束 (Neutral Proton Beams) 的粒子都是高能量的电离气体粒子,也就是所谓的物质第四态 -- 电浆 (Plasma),而每个携带超过其稳定状态能量的原子均会放出数种特定频率的电磁波(广义的光),

Plasma Engineering：等离子体工程

149. 导波光学 Wave Guiding Optics | 150. 等离子体工程 Plasma Engineering | 151. 低频电子线路 Low Frequency Electric Circuit