Model GC-4400 Photo ionization Gas Chromatograph development by Beijing City East and west Electronic Technology Institute is described in this article.
介绍了北京市东西电子技术研究所（北京东西分析仪器有限公司）、开发生产的的GC-4400型便携式光离子化气相色谱仪。
A kind of field ionization gas sensor was designed and fabricated, the corresponding test equipment for current and voltage measurement was established.
设计并研制出基于一维纳米材料的场致电离传感器，建立了相应的电流或电压测试平台。
Using moment method, combined with Boltzmann equation, a set of fluid kinetics equations is used to describe the motion of particles in the weak ionization gas.
用矩方法与Boltzmann方程相结合，推导出气体弱电离环境下粒子所满足的流体力学方程组。
Progress of the research in field ionization gas sensor was investigated and there are still some disadvantages: high working voltage, bad selectivity and stability.
在对国内外场致电离气体传感器研究进展进行详细调研的基础上，发现它始终存在着工作电压高、选择性差和稳定性差问题。
A long tendril of colder gas and dust extends many light years into the void from the receding ionization front.
低温气体和尘埃长长的卷须从渐行渐远的电离前沿一直延伸到数光年远的太空。
This is called ionization, gas phase species loses an electron.
而这个过程是离子化，气相组分失去一个电子。
The electron-stripping process, known as ionization, heated the helium gas from 18, 000 to nearly 40, 000 degrees Fahrenheit (10, 000 to 22, 000 degrees Celsius).
电子脱离的过程，即离子化，把氦气从华氏18’000度加热到40’000度（摄氏10’000度至22’000度）。
Above this density, microwave field will damp rapidly, so the gas ionization is mainly on the surface.
超过此密度后，微波场在表面快速衰减，气体电离主要在表面进行。
A gas - filled ionization chamber USES this principle.
充气电离室就是利用这一原理。
A gas-filled ionization chamber USES this principle.
充气电离室就是利用这一原理。
The optimum parameters, such as electron current and voltage for ionization, acceleration voltage, retarding voltage, gas inlet pressure, were determined by experiments.
通过实验确定了最佳参数，其中包括：离化电子电流和电压、加速电压、阻止电势、供气压力等。
If the vacuum near the cathode is too poor, it will generate spark, gas ionization and ion bombardment on cathode, which can result in a fast attenuation of the emission current.
如果碳纳米管阴极附近的真空度太低，将产生打火、气体电离、离子回轰阴极等问题，将导致阴极发射电流的迅速衰减。
This system consists of high pressure ionization chamber detector filled with Xe gas, 8051 single chip control unit and low current measuring amplifier.
该监测系统采用高气压氙气电离室作为探测器，以8051单片计算机作为控制主机，电路上采用弱电流测量方法。
The recent progress in gas ionization detectors, solid and gas scintillator counters semiconductor detectors and quantum microcalorimeter abroad are described in this paper.
文中介绍了气体电离探测器，固体、气体闪烁计数器，半导体探测器以及量子微量热器等方面的国外近年进展简况。
The paper describes the application of gas chromatography with discharge ionization detector which analyzes the content of impurities in high purity gases.
论述了放电离子化检测器在高纯气体杂质成分分析中的应用。
Dissociation and ionization of air bring on lower drag coefficients of the orbiter than that obtained from perfect gas model, while the location of pressure center moves forward.
空气的离解和电离导致轨道器的阻力系数比完全气体计算值低，压心位置前移。
There are many unsolved problems in conventional DBD gas ionization technique, resulting in lower gas ionizability, which cannot be used in non-equilibrium plasma chemistry.
由于传统的DBD在气体电离方法方面存在许多问题，致使大气压条件下放电空间内气体的电离度很低，无法满足非平衡等离子体化学工程的需要。
A new gauge described in this paper is based on the electrostatic saddle field confinement which is capable of producing long electron paths and consequently efficient gas phase ionization.
本文提出两种结构的具有环形阳极的马鞍场电子振荡微电离规（以下简称鞍场规），它其于可以产生电子路径，因而产生有效的气相电离的静电马鞍场约束的基础上。
In quick scanning radiography system, the time respond speed of array gas ionization chamber effects the image clarity directly.
在快速辐射扫描成像系统中，阵列气体电离室时间响应速度的快慢将直接影响图像的清晰度。
Three types of direct current plasma ionization detectors (HeDCPID) for gas chromatography have been developed.
报道三种不同类型的气相色谱用氦直流等离子体离子化检测器。
The authors also studied the continuous self-recording technique by using the ionization method to measure the Radon gas.
并对应用电离法测量逸出气氡的连续自记观测技术进行了预研究试验。
The results show that the alarm time depends strongly on both the gas concentration and the emission current of the ionization gauge.
实验数据还表明，快速报警响应时间与气体分子浓度和真空计规管灯丝的发射电流密切相关。
Acrylic resin is diluted in ethyl acetate and the remnant monomer is well separated from it by gas chromatography and is quantificationally measured by hydrogen flame ionization detector (FID).
乙酸丁酯稀释丙烯酸树脂后，用气相色谱法使丙烯酸树脂中的各种残余单体得到较好分离，再采用氢火焰离子化检测器(FID)定量测定。
To strike an the arc, electron emission and ionization of the gas is initiated by withdrawing the electrode from the work surface in a con trolled manner, or with the aid of an initiating arc.
钨极氩弧焊是通过工件表面和电极之间气体的电离和电子的发射来引弧的。
A transverse field gas ionization chamber for particle identification at the Radioactive ion Beam Line in Lanzhou (RIBLL) is described.
描述了一种将用于兰州放射性束流线较重离子鉴别的多阳极横向场电离室。
The stability of the welding arc depends mainly on the voltage and the gas ionization when current zero-crossing as well as the electron emission ability of the electrode.
其电弧稳定与否，主要取决于电流过零瞬间的电弧空间电离度、 电极发射电子能力及再引燃电压的上升速度。
The detecting system is based on the residual gas ionization principle and consisted of electrostatic collecting plates, micro-channel plates and a resistive anode.
介绍了一种以微通道板和电阻阳极所构成的位置灵敏探测器为基础、用于兰州重离子加速器束流诊断的新型剩余气体电离束流剖面探测系统。
Besides, the triggering electrode will realize the ionization of xenon gas along the length direction of the discharge spacing that transmits high-voltage pulse.
另外，上述触发电极能沿着传输高电压脉冲的放电空隙的长度方向将氙气离子化。
Methods: Volatile oil was separated by solvent extraction and analysed by gas chromatography coupled with electron impact ionization-mass spectrometry (GC-MS).
方法：采用溶剂浸渍方法提取冬凌草中的挥发性成分，用GC -MS方法对冬凌草挥发油的化学成分进行分析。
Methods: Volatile oil was separated by solvent extraction and analysed by gas chromatography coupled with electron impact ionization-mass spectrometry (GC-MS).
方法：采用溶剂浸渍方法提取冬凌草中的挥发性成分，用GC -MS方法对冬凌草挥发油的化学成分进行分析。
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