您要查找的是不是：
- rear earth metals 稀土金属
- Rare earth metals have purifing and fining and alloying effects. 稀土金属在铝合金中具有净化、细化和合金化效果。
- The rear earth activated inorganic nonmetal phosphors play an important part in the Light-Emitting-Diodes (LEDs) for generation of white light. 稀土离子激活的无机非金属荧光粉作为光转换材料在白光LED中起着重要的作用。
- Rear earth element determination in tea by inductively coupled plasma mass spectrum...to determine fifteen rear earth elements simultaneously.... 茶叶中稀土元素的电感耦合等离子体质谱检测方法研究-相关信息...
- When rare earth metal ion is used, the tetrazine is opened with unusually way. 而稀土与四嗪作用时发现四嗪环的异常开环。
- It is used in rare earth metals smelting or used as high temperature containers. 主要用于稀土金属冶炼等用。作高温容器。
- A reddish-brown mineral containing rare earth metals; an important source of thorium and cerium. 一种红褐色矿物，含稀土金属，是钍和铈的主要来源。
- Gschneidner K A Jr.Preparation and purification of rare earth metals and effect of impurities on their properties. 汤爱涛.;稀土在铝合金中的除渣和除气的若干热力学和动力学分析[J]
- A reddish - brown phosphate mineral containing rare - earth metals(Ce,La,Y,Th)PO4,important as a source of cerium and thorium. 独居石一种含有稀土(铈、镧、钇、钍)的浅红褐色磷矿，分子式为PO4，它是铈和钍的重要来源
- The study on the Zhashui rapakivi granite body in this paper shows that the rapakivi granite has the characteristics of I- and A-type granite in terms of geochemistry of major elements, trace elements, rear earth elements and primitive Isr. 研究表明,柞水岩体的主元素、微量元素及稀土元素地球化学、Sr 同位素初始值 I_(Sr)等清楚的显示具有I-型和A-型花岗岩特征,大地构造环境判别属碰撞后隆升阶段或造山后花岗岩。
- A reddish - brown phosphate mineral containing rare - earth metals(Ce,la.Y,Th)PO4,important as a source of cerium and thorium. 独居石一种含有稀土(铈、镧、钇、钍)的浅红褐色磷矿，分子式为PO4，它是铈和钍的重要来源
- The properties and applications of the rear earth nanometer luminescent materials、permanent magnet、catalyst are introduced in this paper. In the meanwhile, the progress of them has been reviewed. 本文着重介绍了稀土纳米发光材料、磁性材料、催化剂的性质、应用及发展情况。
- The heat stabilities and transparencies of stearates of rare earth metals except scandium and promethium used as heat stabilizers as PVC were studied. 研究了钪、钷外其他稀土金属硬脂酸皂对PVC热稳定作用。结果表明:它们均属长期型热稳定剂,与少量硬脂酸锌并用可有效改善其抑制PVC初期着色的效能;
- Abstract: In rock pyrolysis when the content of base metals and base earth metals is relatively high ionization interference will frequently occur. 文摘:在岩石热解分析中当岩样碱金属和碱土金属离子含量较高时,经常发生离子化干扰的影响。
- Application:Used as refractory materials in rare earth metals smelting, arc smelting, electrode making and debices forming in glass fiber making field. 用途：主要用于玻璃纤维作成型器、耐火材料、稀土金属冶炼、电弧熔炼、做电极材料。
- While being heated to high temperature, the rare earth metals can easily volatilize, which will have bad effect on the determination. 针对稀土金属高温易挥发的特点,选择适宜的加热温度,使用镍浴选择高温座坩埚进行试验,获得了满意的测定效果。
- "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；
- 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。
- rear earth oxygen storage material 稀土储氧材料
- The results show that the recovery rate increased as the increase of the content of rare earth metals in Sm-Eu-Gd concentrate and the purity of europia. 结果表明，粗铕的回收率随氧化钐铕钆富集物中稀土总量和氧化铕含量的增加而提高；
