查询词典 oxide thorium

Phosphorus oxide 1-10 wt.%, and aluminum oxide. The molar ratio of tungsten oxide to molybdena oxide is 2.6-30. The method comprises introducing nickel oxide, molybdena oxide, tungsten oxide and phosphorus oxide into aluminum oxide carrier.

该催化剂由包括向氧化铝载体中引入磷、钼、镍和钨，其中，各组分的用量使催化剂焙烧后的组成为：氧化镍1-10重量％，氧化钼和氧化钨之和大于10至50重量％，氧化磷1-9重量％，余量为氧化铝，其中，以氧化物计，钨和钼的摩尔比大于2.6至30。

Our main production of iron oxide products, iron oxide red H110, H130, HO01-02, H190, iron oxide yellow G313, 313, 722 black iron oxide, iron oxide brown 842,7602, Green iron oxide, iron oxide-floor yellow, iron oxide 980,990, a number of varieties, a tin of raw materials, nitric acid, sulfuric acid oxidation and the second is made of high-quality paint. 980,990 iron oxide in response to short-iron through the burning and made of magnetic materials.

本厂主要生产氧化铁系列产品，氧化铁红H110、H130、HO01-02、H190等，氧化铁黄G313、313等、氧化铁黑722等、氧化铁棕842、7602、氧化铁绿、氧化铁兰、地板黄、980、990三氧化二铁等多项品种，原材料是以铁皮、硝酸、硫酸二次氧化而制成的具有高品质的颜料。980、990三氧化二铁是以纯铁粉通过反应短烧而制成的磁性材料。

Said lead tungstate crystal comprises tungsten oxide, lead monoxide, ytterbium oxide and zinc oxide; the molar ratio between tungsten oxide and lead monoxide is 1: 1, the doping amount of ytterbium oxide is 50 -300 ppm of the total weight of tungsten oxide and lead monoxide, the doping amount of zinc oxide is 50 -1050 ppm of the total weight of tungsten oxide and lead monoxide.

Yb和Zn双掺杂钨酸铅晶体由氧化钨、氧化铅、氧化镱和氧化锌制成；氧化钨与氧化铅的摩尔比为1∶1，氧化镱的掺杂量为氧化钨和氧化铅总质量的50～300ppm，氧化锌的掺杂量为氧化钨和氧化铅总质量的50～1050ppm。

A method for producing fatty acid alkyl esters and/or glycerin comprising a step of bringing a fat or oil into contact with an alcohol in the presence of a catalyst, wherein the catalyst is at least one catalyst selected from the group consisting of the following to: a metal oxide having an ilmenite structure and/or a slyrankite structure; an oxide containing a metallic element belonging to the Group 12 and a metallic element belonging to the Group 4; a mixed oxide containing a metallic element belonging to the Group 12 and a tetravalent transition metallic element; a metal oxide containing zirconium and at least one metallic element selected from the group consisting of metallic elements belonging to the Groups 4, 5 and 8; and a metal oxide containing anatase type titanium oxide and/or rutile type titanium oxide, and the metal oxide containing a sulfur component of 700 ppm or less.

脂肪酸烷基酯和/或甘油的制造方法包括在催化剂的存在下使脂肪或油与醇接触的步骤，其中，所述催化剂是选自由下列～所组成的组中的至少一种催化剂：具有钛铁矿结构和/或斯里兰卡石结构的金属氧化物；含有属于第12族的金属元素和属于第4族的金属元素的氧化物；含有属于第12族的金属元素和四价过渡金属元素的混合氧化物；含有锆和选自由属于第4、5和8族的金属元素所组成的组中的至少一种金属元素的金属氧化物；和含有锐钛矿型氧化钛和/或金红石型氧化钛的金属氧化物，并且所述金属氧化物含有的硫成分为700ppm以下。

The invention discloses a high-voltage N-type metal oxide semiconductor, including a P-type substrate, a P-well drift region and an N-type drift region are arranged on the P-type substrate, a P-type contact hole, an N-type source and a field oxide layer are arranged on the P-well, an N-type drain and the filed oxide layer are arranged on the N-type drift region; the invention is characterized in that the thickness a grid oxide layer part which is positioned above the P-well is smaller than the grid oxide layer part which is positioned above the N-type drift region and a thin grid oxide layer and a thick thin grid oxide layer are respectively formed accordingly, a P-type impurity injection region is arranged in the P-well, and the P-type impurity injection region is positioned below the thin grid oxide layer.

本发明公开一种高压N型金属氧化物半导体管，包括P型衬底，在P型衬底上设有P型阱和N型漂移区，在P型阱上设有P型接触孔、N型源及场氧化层，在N型漂移区上设有N型漏及场氧化层，其特征在于位于P型阱上方的栅氧化层部分的厚度小于位于N型漂移区上方的栅氧化层部分并由此分别形成薄栅氧化层和厚薄栅氧化层，在P型阱内设有P型杂质注入区且该P型杂质注入区位于薄栅氧化层的下面。

First firing of raw materials are usually basic glaze frit, in the process of production need to add metal oxides, metal ions is also a special color of the enamel glaze color, or as a gel, or suspension-like particles of the dispersion or absorption of light and color, for example, cobalt oxide blue or purple, blue green copper oxide, cobalt oxide copper oxide mixture is significant blue, red cuprous oxide, nickel oxide in the potassium content of the glaze was red, in the sodium yellow glaze of green, if used alone was brown iron oxide, cobalt oxide and manganese dioxide are combined black or dark brown.

通常是先将原料烧成基本釉的熔块，在制作的过程中再加入需要的金属氧化物，也就是以金属离子特具的颜色而使珐琅釉呈色，或成为胶状，或悬浮状的粒子对光线的色散或吸收而呈色，例如氧化钴呈蓝或紫色、氧化铜呈蓝绿色、氧化铜混和氧化钴则显青色、氧化亚铜呈红色、氧化镍在含钾之釉中呈红色、在含钠之釉中呈黄绿色，又如氧化铁单独使用呈褐色，与氧化钴及二氧化锰合用则呈黑色或黑褐色。

The invention discloses a high-voltage P-type metal oxide semiconductor, including a P-type substrate, a deep N-well is arranged on the P-type substrate, an N-well drift region and a P-type drift region are arranged on the deep N-well, an N-type contact hole, a P-type source and a field oxide layer are arranged on the N-well, a P-type drain and the field oxide layer are arranged on the P-type drift region; the invention is characterized in that the thickness a grid oxide layer part which is positioned above the N-well is smaller than the grid oxide layer part which is positioned above the P-type drift region and a thin grid oxide layer and a thick thin grid oxide layer are respectively formed accordingly.

本发明公开一种高压P型金属氧化物半导体管，包括P型衬底，在P型衬底上设有深N型阱，在深N型阱上设有N型阱和P型漂移区，在N型阱上设有N型接触孔、P型源及场氧化层，在P型漂移区上设有P型漏及场氧化层，其特征在于位于N型阱上方的栅氧化层部分的厚度小于位于P型漂移区上方的栅氧化层部分并由此分别形成薄栅氧化层和厚薄栅氧化层。

Either of two decay products of thorium ,meso thorium I,an isotope of radium,or meso thorium II,an isotope of actinium.

新钍钍的两种放射性生成物之一，即新钍1号，它是镭的同位素，或新钍2号，它是锕的同位素

In North China, price of praseodymium neodymium oxide, a major RE variety rose 50%; that of cerium oxide grew 40%; and that of lanthanum oxide, 27%. In South China, price of dysprosium oxide rose 65%; that of terbium oxide, 69%; and that of europium oxide, 12%.

其中北方稀土主要品种氧化镨钕上涨 50%，氧化铈上涨40%，氧化镧上涨27%；南方主要品种涨幅更大，氧化镝上涨65%，氧化铽上涨69%，氧化铕上涨12%。

In this subject, we have successfully prepared ordered oxide films on the single metal crystals including aluminum oxide, vanadium oxide, cerium oxide, chromium oxide and magnesium oxide in nano size.

本项目在超高真空中制备了各种纳米有序氧化物薄膜（包括氧化铝、氧化钒、氧化铈、氧化镁和氧化铬）和氮化铈薄膜。

Finally it offers the analysis of the fault-tolerance system as well as its test verification.

这样，运行于空间环境中的系统的设计目标就是在保证系统实时性

However, it is still difficult to find out the real reason of the increase of the keratinized gingiva during the orthodontic extrusion whether it is due to the proliferation of the gingival tissue or to its elastic nature, that is because the proliferation of the fibroblasts as well as the connective tissue changes in volume and the intra-fibers spaces were all immeasurable in most of the studies.

然而，仍然难以找到真正的原因增加的角化牙龈在正畸挤压它是否是由于扩散的牙龈组织或其弹性性质，这是因为增殖的成纤维细胞以及作为结缔组织的变化量和内部纤维空格都是不可估量的，大多数的研究。