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The process of sodium fluoride by ammoniating method was described in brief. 本文简述了氨化法合成氟铝酸钠工艺技术,测试分析了氨化法冰晶石的矿相、结晶形貌。
When baby can gargle, parents shall use brackish water, weak tea light tea, sodium fluoride water to help baby gargle. 当宝宝能漱口以后，每天可用淡盐水、淡茶水、氟化钠水漱口1次。
A method of producing crystal sodium fluoride with sodium fluosilicate and sodium carbonate is introduced. 本文介绍了以氟硅酸钠、纯碱为原料生产晶体氟化钠的工艺，并对操作条件作了详细的说明。
If arsenate of lead, arsenic calcium, sodium fluoride and mineral oil emulsion, and so on. 如砷酸铅、砷酸钙、氟硅酸钠和矿油乳剂等。
This research uses dicyandiamide as firming agent in epoxy powder coating and sodium fluoride as additive in epoxy. 采用磷酸双氰胺盐作环氧粉末涂料的固化剂、氟化钠作添加剂。
The direct combination of sodium fluoride(NaF) to the different types of DNA was investigated using UV absorption spectrometry. 以紫外吸收光谱法测定了氟化钠（NaF）与不同类型DNA的直接结合作用。
The effectiveness of anti-caries actives formulations based on sodium fluoride or sodium mono-fluorophosphate are confirmed. 对以氟化钠和一氟磷酸钠为基础的抗龋活性物配方的有效性给予了肯定。
Then, sodium fluoride, potassium fluoride and (rubidium, cesium) fluoride was separated by concentrating, stepwise precipiting from the solution. 分离后的溶液进行浓缩,分步析出氟化钠、氟化钾和铷铯氟化物。
Methods： Among the 170 cases with labioversion, 85 cases are coated with sodium fluoride on the surface of enamel, wheareas the control group are not. 方法： 170例采用固定矫治器进行治疗的错畸形患者，85例做为处理组，在托槽粘着后立即在托槽周围的牙面上涂布氟化钠涂膜，以后每三个月涂布一次；
Sodium fluoride destroys metal crystalline grain, forming the small cellular structure, it convenient for membrane imbed among them. 氟化钠破坏金属晶格形成微小的蜂窝状结构，从而便于涂膜嵌入其中，达到增强涂膜附着力的目的。
Traditional phosphating solutions usually contain sodium nitrite, potassium bichromate, sodium fluoride and nickel nitrate which are detrimental to human body and environment. 常规磷化液中通常含有亚硝酸钠、重铬酸钾、氟化钠或硝酸镍等对人体和环境有害的物质。
A new technology is introduced for preparation sodium fluoride and silica aerogel from fluorosilicis acid, the by-product of phosphatic fertilizer production. 摘要介绍一种利用磷肥工业副产品氟矽酸制备氟化钠和白炭黑的新工艺。
A method of producing crystal sodium fluoride with sodium fluosilicate and sodium carbonate is introduced. And its optimal operations are described in detail. 本文介绍了以氟硅酸钠、纯碱为原料生产晶体氟化钠的工艺，并对操作条件作了详细的说明。
Zibo Nanhan Chemical Co., Ltd.- Specialized in manufacturing fluoride products, mainly cryolite, aluminum fluoride, magnesium fluoride, sodium fluoride and hydrofluoric acid. 淄博锦星化工有限公司-专业生产经营硫酸镁、硫酸亚铁和硫酸锌。
The study was undertaken with the purpose of determining the mutagenicity of sodium fluoride on peripheral lymphocytes culture in vivo (rabbits) and in vitro (men, rabbits), by the method of sister chromatid exchange (SCE). 用姐妹染色单体交换(SCE)测试技术,在离体培养条件下研究了不同浓度氟化钠(NaF)对人、兔外周血淋巴细胞的影响。
Group I was the control , and other four groups ,groupII,III,IV,V were fed the diets containing 500,1 000,1 500,2 000 mg/kg of fluorine as sodium fluoride, respectively, for 150 days. 第组 :正常对照组 , , , , 组在日粮中添加不同水平的氟化钠 ,使日粮中氟的含量分别为5 0 0 ,1 0 0 0 ,1 5 0 0和 2 0 0 0 mg/kg,试验期为1 5 0 d。
Abstract: The density of potassium fluotantalate and its mixed melt salt system with sodium chloride, potassium chloride, sodium fluoride and potassium fluoride are measured by Archimedes principle. 用阿基米德法测定了氟钽酸钾及其与氯化钠、氯化钾、氟化钠、氟化钾等混合熔盐体系在熔融状态下的密度，用线性回归分析方法导出了各熔盐体系的密度与温度的关系。
The process of sodium fluoride by ammoniating method was described in brief. The phase composition and crystalline morphology was determined and the crystallization kinetics was discussed also. 本文简述了氨化法合成氟铝酸钠工艺技术,测试分析了氨化法冰晶石的矿相、结晶形貌。就其结晶行为相关的动力学问题进行了讨论。
Fluorine, one of the necessary trace elements of human beings is presented in the forms of inorganic and organic compounds in foods, such as sodium fluoride, silicon fluoride, and fluoroacetate etc. 氟是人体必需的微量元素之一,通常以各种多元无机态或有机态形式存在。
A variety of fluorides can be produced with this process, such as ammonium fluoride, sodium fluoride,aluminum fluoride,cryolite,etc. 用该工艺可制得多种氟化物,如氟化铵、氟化钠、氟化铝、冰晶石等;