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- The latter, which appeared in the Tang Dynasty, is to decoct the brine extracted from the ash or alkaline earth in flat plates. “煎盐”则指提取柴灰或碱土中的卤水,用浅而阔的盘熬干以制取盐,这一专称唐代始见。
- Rare earth luminescence materials of alkaline earth stannates have also been prepared via thermal decomposition of hydroxo stannate precursors. 利用某些新型带羟基的碱土锡酸盐作为前驱体,固相反应合成掺稀土的锡酸盐发光材料。
- A lustrous,blackish - brown rare - earth mineral consisting primarily of cerium,erbium,titanium,uranium,and yttrium. 黑稀金矿一种光亮的棕黑色稀土矿石,主要由铈、铒、钛、铀和钇构成
- With alkali-voron-silicon as the basis and addition of alkaline earth composite fluxing agent,a kind of leadless fluxing agent is developed. 以碱-硼-硅系统为基础,加入碱土金属氧化物复合助熔剂,研制无铅釉上彩熔剂。
- Barium Zirconate; Alkaline earth, transitional metal and rare earth stannates;Complex oxides; Monodisperse; Nanostructures; Solution-based reactions. 01锆酸盐;锡酸盐;复合氧化物;单分散;纳米结构;液相合成
- A lustrous, blackish - brown rare - earth mineral consisting primarily of cerium, erbium, titanium, uranium, and yttrium. 黑稀金矿一种光亮的棕黑色稀土矿石,主要由铈、铒、钛、铀和钇构成
- Developing alloy supporters,new Pd-only TWC,transition metal oxides and alkaline earth oxides as promoters will be the research points for TWC. 开发金属合金载体,以及新型单钯催化剂、过渡金属型或稀土钙钛矿型催化剂是今后三效催化剂研究的热点。
- Researches in and application of Lewis acid,Bronsted acid,alkali, alkaline earth and molecular sieve catalysts were described in detail. 对采取烷基化法和酰基化法合成2,6-二烷基萘的工艺路线,尤其对所使用催化剂的研究进展进行了评述。
- Endogenic rare and rare earth mineral deposits are widespread in China, and data of their formation ages are available from Archean to Himalayan. 摘要内生稀有稀土矿床在我国广泛分布,矿床的形成时代从太古宙到喜马拉雅期。
- The process of sol-gel method to prepare alkaline earth aluminate and the properties of the product obtained by this method were discussed in detail. 着重对溶胶-凝胶法制备超细碱土铝酸盐长余辉发光材料的过程及得到的产品性能做了详细阐述。
- Western China has great potentialities so far as the prospecting of the endogenic rare and rare earth mineral deposits is concerned. 西部地区是找寻大型内生稀有稀土矿床极有潜力的地区。
- Researches in and application of Lewis acid, Bronsted acid, alkali, alkaline earth and molecular sieve catalysts were described in detail. 对采取烷基化法和酰基化法合成2,6-二烷基萘的工艺路线,尤其对所使用催化剂的研究进展进行了评述。
- Bastnaesite is the predominant commercial rare earth mineral, which is characterized by coarse to megacrystals and by strong Ce-selection pattern. 氟碳铈矿是最主要的稀土矿物,以其结晶粗大和强铈选择配分型为特征。
- Developing alloy supporters, new Pd-only TWC, transition metal oxides and alkaline earth oxides as promoters will be the research points for TWC. 开发金属合金载体,以及新型单钯催化剂、过渡金属型或稀土钙钛矿型催化剂是今后三效催化剂研究的热点。
- Noncarbonated products include Qoo, Minute Maid, Nestea Lemon, Nestea Icy Rush, Modern Tea Workshop, Heaven and Earth mineral water and Sensation pure drinking water. 非碳酸饮料产品有酷儿系列、美汁源果粒橙,雀巢柠檬茶、雀巢冰爽茶、茶研工坊茶,天与地矿物质水和水森活饮用纯净水。
- "More broadly, ammonium hydroxide (see ammonia) and soluble hydroxides of the alkaline earth metals are also called alkalies. 碱是强碱性的,会使红石蕊试纸变蓝色;
- Photoluminescent pigment is a new-type of environmentally friendly Alkaline earth aluminate pigment with the characters of non-toxic, innocuous, non-radioactive. 稀土发光颜料是一种新型的、色环保碱土铝酸盐光致发光颜料,该颜料通过吸收各种可见光后在暗处可实现自动发光功能,发光时间长达10小时以上,并可无限次循环使用。
- In this paper, chemical storage materials of hydrate of alkaline earth metals at low tempera tures are rported by differential scanning calorimetry( DSC). 对碱土金属的水合氯化物作为一种低温化学蓄热材料进行了相应的dsc研究。
- The experimental research on leachability of a semi-weathered ion-adsorption type rare earths mineral was performed. 对某地半风化离子型稀土矿进行了可浸性试验研究。