1895年，威廉·伦琴偶然发现阴极射线管能使涂有一层氰亚铂酸盐钡的薄相纸发光，甚至当阴极射线管和相纸分别放在不同的房间时也能发光。
In 1895, Wilhelm Roentgen accidentally discovered that a cathode-ray tube could make a sheet of paper coated with barium platinocyanide glow, even when the tube and the paper were in separate rooms.
重点介绍了钼酸钠、钼酸钡的生产工艺及质量控制过程。
The production technology of sodium molybdate, barium molybdate and quality control were presented particularly.
应用发射光谱技术研究了T12荧光灯阴极电子发射材料钡的损失。
Emission spectroscopic techniques are employed to study the loss of thermionic emission material barium from the cathode of a T12 fluorescent lamp.
介绍八水氢氧化钡制取高纯碳酸钡的工艺、产品质量及用户使用结果。
The process quality and using result of high purity barium carbonate prepared with barium hydroxide have been introduced.
研究了钡的新显色剂二溴对甲偶氮羧的合成及其与钡显色反应的条件。
A new reagent, dibromomethyl carboxyazo was synthesized and its colour reaction with barium was studied.
本文阐述了钡的冶金理论，硅钡系列铁合金的生产实践，以及在黑色冶金中的应用。
This paper describes the metallurgical theory for Ba and the productive practice of Si-Ba series ferroalloys as well as its application to the ferrous metallurgy.
钡的超常富集，不仅是一个消耗大量有机碳的过程，而且是有机质成熟度不断加深的过程。
In the process of unconventional Ba enrichment, a lot of organic carbons were depleted and the maturity of organic matter became higher.
介绍了高纯碳酸钡的常见粒度表述术语，评价方法与生产控制手段，为高纯碳酸钡生产中的粒径控制提供了多条途径。
This article introduced the usual terms of grain size, measurement and production control for high -purity barium carbonate. it also presented some measures to control grain size in the production.
通过一系列条件试验，研究了石墨炉原子吸收光谱法测定水中微量钡的石墨管类型、最佳加热程序和最佳基体改进剂等。
Determination of trace Ba in water by graphite furnace atomic absorption spectrometry is studied. The optimum graphite tube, heating programs and matrix modifier are investigated.
用激光拉曼光谱系统研究了含钛钡硼硅酸盐玻璃的结构。
The structure of barium borosilicate glasses containing titanium is studied systematically by laser Raman spectroscopy.
镁、锶、钡具有类似钙的作用。
The functions of magnesium, strontium and barium are similar to calcium.
由于钡星系统是由普通红巨星双星系统演化而来，因此钡星系统的轨道偏心率及周期的分布显示了经过质量吸积后双星系统的最终轨道特征。
As Ba star systems are evolved from G-K star systems, the distribution of orbital eccentricities and periods of Ba stars can show the final orbital character of binaries.
为了研究硫酸盐废水的处理，利用天然钡矿石对硫酸盐废水进行吸附。
In order to study the treatment of the sulfate waste water, natural barium ore was taken to adsorb the sulfate waste water.
采用这一方法可简便地估算出钡钨阴极及氧化物阴极在烘排时的温度。
With this method the temperature of barium tungsten cathodes and oxide cathodes in baking can be estimated out simply and conveniently.
结论十二指肠镜和气钡双重造影是诊断ptd的主要检查方法。
Conclusion Duodenal endoscope and air barium double radiography are mainstays for the diagnosis of PTD.
通过对17例喉咽、颈段食管癌的食管吞钡造影与磁共振(MRI)检查结果进行对比分析。
Imaging by MR (MRI) and esophageal barium meal of 17 cases of hypopharyngeal and cervical esophageal cancer were analyzed.
生产钡渣砖是治理钡渣的一条有效途径。
To produce barium slag bricks is an effective way to treat barium slag.
叙述了在电弧炉中用稀土富渣、硅铁、重晶石、石灰等原料冶炼稀土硅钡镁合金的研制过程。
Smelting of SiMgREBa alloy with rare earth rich slag, barite and lime in electric-arc furnace is introduced in the paper.
经含钡合金处理的钢材力学性能，如疲劳、横向冲击韧性和各向异性可得到显著改善。
The mechanical properties such as fatigue, transverse impact toughness and anisotropic properties of steels treated with Ba-containing alloys are remarkably improved.
此模型可用来解释取向钡铁氧体磁粉介质的反磁化机理。
This model could be used to explain the magnetization reversal mechanism of the oriented Ba ferrite particulate media.
介绍了石膏含量对含钡铁铝酸盐水泥的水化、抗压强度和凝结时间等性能的影响。
The effect of gypsum content on the hydration, compressive strength and setting time of Ba-bearing aluminoferriate cement was presented.
目的：为了减轻患者检查时的痛苦，对气钡双对比造影（上胃肠道）方法作了改进。
Objective This paper introduces an improved pneumo barium double contrast examination (for the upper gastrointestinal tract) to release the pain caused by gastrointestinal series.
硫酸钡必须是无块的粉末。
硫酸钡必须是无块的粉末。
铝硅钡石是缅甸帕敢翡翠矿床中新近发现的一种矿物。
Cymrite is a new discovered mineral in the jadeite jade deposit of Myanma.
目的分析评价气钡双重对比造影在上消化道疾病中的诊断价值。
Objective To analyze the diagnostic value of double contrast of air and barium study on diseases of upper digestive tract.
多晶硅用钡掺杂并且在含有低于约0.5%的不溶于硅的气体的二氧化硅坩埚中熔化。
Polysilicon is doped with barium and melted in a silica crucible containing less than about 0.5 % gasses insoluble in silicon.
本文就不同浓度的钡对天然水的生化需氧过程、氨化及亚硝化过程的影响进行了探讨。
This paper discussed the influence on the biochemical oxygen demand, ammoniation and nitrosation by barium of different levels in water.
目的探讨胃肠道间质瘤(GIST)的胃肠钡剂造影征象和CT的影像表现。
Objective To analyze the clinical imaging features of the Gastrointestinal Stromal Tumors (GIST) by ct scan and Barium meal.
目的探讨胃肠道间质瘤(GIST)的胃肠钡剂造影征象和CT的影像表现。
Objective To analyze the clinical imaging features of the Gastrointestinal Stromal Tumors (GIST) by ct scan and Barium meal.
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