The Distribution of Sunspot Groups on Solar Disk in the Recent Three Cycles

The main conclusions are as follows; 1. The flares producing the storms with strong main phase are stronger. They concentrate mainly near the central meridian of the solar disk;

本文得到的主要结论是：1.产生强主相SC磁暴的耀斑较强，主要集中在日面中心经圈附近；

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Distributive characteristics of the proton flares on solar disk

质子耀斑的日面分布特征

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Normal and quick run ( H. D.) records of the earth's magnetic field were made at Ruili, Yunnan Province during Feb. 16, 1980, total solar eclipse. Daily variation, small disturbance and magnetic pulsation were analysed.

1980年2月16日日全食期间，在云南瑞丽进行了地磁场的正常与快速两种记录，分析了地磁日变化、小扰动和地磁脉动的变化。

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This paper deals with the study of the spatial distribution of the amplitude of diurnal variation of geomagnetic vertical component in China, based on the data recorded at some Chinese geomagnetic stations, using the method of analysis of solar daily variation of geomagnetic field in local regions.

本文利用我国部分台站地磁垂直分量日变幅的资料，采用局部地区日变场的分析方法，研究了地磁垂直分量日变幅在中国地区的空间分布特征。

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It was found that the presence of fluoride only enhanced the degradation of phenol on TiO2 with anatase phase, while it retarded the phenol degradation on TiO2 with pure rutile phase.

结果发现，加入氟离子使锐钛矿型和金红石型TiO2光催化降解苯酚的速率分别发生升高和下降，并且这种效应与催化剂活化温度紧密相关。

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Determination of Chloride, Sulfate and Fluoride in the Flue-Curd Tobacco by Ion Chromatography Indirect Method of Determination of Sulfate and Phosphate in Puffed Food by ICP-AES

离子色谱法测定烤烟中氯离子和硫酸根离子及氟离子ICP-AES间接测定膨化食品中的硫酸根和磷酸根

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Under different pH, temperature, use level, and velocity, adsorbance was tested.

在不同pH、温度、用量和搅拌时间下，测试其氟离子吸附率。

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Surface ultrastructure and fluoride distribution of enamel in laser-NaF treated group, laser treated group, NaF treated group and control group were observed by scanning electron microscope ( SEM) and electron probe microanalyzer.

扫描电镜（SEM）、电子探针分别观察和分析激光加氟化钠组、激光组、氟化钠组、空白组（不处理）牙釉质表面超微结构及牙釉质内部氟离子分布水平。

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When high concentration HF wastewater is processed with two-stage chemical method, fluorine ion concentration of the treated water can meet the national effluent standard ( closs A).

采用两段式化学法处理高浓度HF废水，处理水中氟离子可达到国家一级排放标准。

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The enhanced adhesion of In, Sn, Al, Pd, Cu and Ni films on Teflon substrates under 6 MeV F ion irradiation was studied.

用6MeV的氟离子对淀积在聚四氟乙烯基底上的In、Sn、Al、Cu、Pd和Ni等金属薄膜进行了一定剂量范围的辐照，测定了发生增强附着效应的阈剂量值。

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The Electromagnetic Agitation Effect on the Adsorption of Fluorine-ion with Al2O3

电磁搅拌下的氟离子在Al2O3上的吸附

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Determination of the Stability Constant of CrO 3F-with a Fluoride Selective Electrode

用氟离子选择电极测定CrO3F~-离子的稳定常数

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The solution pH is very important for fluoride adsorption, which controls the adsorption of fluoride at the absorbent-water interface.

溶液pH值控制了氟离子在固-液界面的吸附，因此对氟离子的吸附具有重要意义。

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Determination of Fluoride Ion by Resonance Rayleigh Light Scattering with Human Serum Albumin

人血清白蛋白共振Rayleigh光散射检测氟离子

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Moreover, the fluorescence intensity of the CDs was responsive to pH value under acidic conditions, suggesting a potential pH sensor. ( 2) Quantitative determination of fluoride with a composite fluorescent probe of carboxylate carbon dots-aluminum(ⅲ).

此外，该碳点在酸性环境中对pH有敏感的响应，有望将其做成酸性pH传感器件。（2）利用碳点-铝（Ⅲ）复合荧光探针定量检测环境中氟离子。

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Preliminary Research of H like Fluorine Ion Recombination X ray Laser

复合类氢氟离子X射线激光的初步研究

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In this paper the application of photothermal deflection spectroscopy to the detection of fluoride ion content in water is described.

本文应用光热偏转光谱（PDS）检测水中微量元素氟离子的含量。

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The mechanism of adsorbing fluorion in water by clay and natural flocculant MR was studied. The effects of adsorption time, adsorption temperature and water pH on adsorption were explored.

研究了用粘土和天然絮凝剂MR去除水中氟离子的机理，探讨了吸附时间、溶液温度及pH对吸附的影响。

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It is also confirmed that the concentration of fluoride ions produced from the hydrolysis of BF_4~-can be determined by fluoride ion selective electrode.

另外也证实了用氟离子选择电极对BF4~-根离子水解所产生的F-离子浓度进行分析是可行的。

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Conclusion FRA can release fluoride slowly and steadily.

结论本实验FRA试样具有稳定缓释氟离子的能力。

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