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It thus became possible to study the cathode rays, and also the fluorescence they caused, outside the discharge tube and Lenard concluded from the experiments that he then did that the cathode rays were propagated through the air for distances of the order of a decimetre and that they travel in a vacuum for several metres without being weakened.
但是后来,1892年他在波恩大学做赫兹的助手时,赫兹让他观察了他的新发现,赫兹将一片盖上铝箔的含铀玻璃片放入放电管,当用阴极射线轰击铝箔时,铝箔下面发出了亮光。
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The industry magnesia mainly uses in making the ceramics, the enamel, the fire-proof material and so on; In the polishing compound, the adhesive, in the paint manufacture takes the stopping; In the artificial fiber, the rubber (chloroprene rubber, fluorine rubber) make the promoter and the catalyst; Makes the antacid on the medicine in the laxative, uses in treating the hyperacidity, the stomach and duodenum ulcer; May take the hard sugar purification is the decolorant in the food processing, the ice cream pH value conditioner and so on; In the construction profession, the magnesia may the manufacturing contain the magnesium special cement and the heat preservation board and so on; The biggest use is serves as the fertilizer and domestic animal's feed in the agriculture, causes the plant and in the animal metabolism process principal element, when serves as cow's feed, may prevent because to lack nervous system function being out of balance which the magnesium causes, namely the so-called forage grass convulsion gets sick; Uses in the chemical industry making the metal magnesium and the magnesium chemical, like magnesium sulfate, magnesium chloride as well as other chemicals; Moreover also uses in the water treatment, the detergent which the flue was mad uses in the glass, the dye, the electric cable, the silcon steel industry, the uranium processing, the electronics industry, the insulation material industry, as well as uses in professions and so on petroleum chemical additive, casting, phenolic plastic.
工业氧化镁主要用于制造陶瓷、搪瓷、耐火材料等;在抛光剂、黏合剂、油漆的制造中作为填充料;在人造纤维、橡胶中作促进剂和催化剂;在医药上作抗酸剂于轻泻剂,用于治疗胃酸过多、胃和十二指肠溃疡病;在食品加工上可作为砂糖精制是的脱色剂,冰淇淋的pH值调节剂等;在建筑行业中,氧化镁可生产制造含镁特种水泥和保温板等;在农业上最大用途是用作肥料和牲畜的饲料,使植物和动物代谢过程中的主要元素,用作奶牛的饲料时,可防止因缺镁而引起的神经系统机能失调,即所谓牧草性痉挛病;在化学工业中用于制造金属镁和镁化学品,如硫酸镁、氯化镁以及其他化学品;另外也用于水处理,烟道气的洗涤剂用于玻璃、染料、电缆、硅钢工业、铀加工、电子工业、绝缘材料工业,以及用于石油添加剂、铸造、酚醛塑料等行业。
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Fission track ; Uranium reference standard glass ; Calibration
裂变径迹;铀标准玻璃;刻度
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Examing neutron integral flux is an important part of fission track technique, and determining neutron integral flux by using uranium standard glass is recommended as a mainmethod by international Fission Track Standardization Group for age-dating.
监测中子积分通量是裂变径迹技术的重要组成部分。铀玻璃监测中子积分通量是国际裂变径迹定年标准化工作组推荐的重要方法之一,铀玻璃测定法还普遍用于测定样品中的铀含量及其空间分布。
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"Uranium Chemical element of the actinide series (with many transition element properties), chemical symbol U, atomic number 92. A dense, hard, silvery white metal that tarnishes in air,"
铀:周期表IIIb族锕系放射性化学元素,化学符号U,原子序数92,铀是致密的银白色金属,其硬度不足以刻划玻璃,于空气中会失去光泽。
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chalcography:雕铜术
chalcogenideglass 硫化物玻璃 硫属化物玻璃 | chalcography 雕铜术 | chalcolite 铜铀云母
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uranyl nitrate:硝酸双氧铀
但是,当神经细胞受伤后,胞质内的尼氏体更可发生变化,严重的可消失. 焦油坚牢紫显示尼氏体染液配制:焦油坚牢紫 1g蒸馏水 100ml操作方法:、切片或用玻璃钩将切片移入2.5%硝酸双氧铀(uranyl nitrate)处理5分钟.
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Vitrol; uran:铀绿矾
"赤铁矾","Vitrol; red iron" | "铀绿矾","Vitrol; uran-" | "玻璃微晶质的","vitromicrolitic"
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neodymium uranate:铀酸钕
neodymium ultraphosphate 过磷酸钕 | neodymium uranate 铀酸钕 | neodymium-chromium glass 钕铬玻璃
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uranium yellow glass:铀黄玻璃
uranium steel 铀钢 | uranium yellow glass 铀黄玻璃 | uranium 铀
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uranium glass:铀玻璃
uranium fluoride 氟化铀 | uranium glass 铀玻璃 | uranium oxide 氧化铀