查询词典 o-dihydroxybenzene

We have found that there are regularity changes in the Raman spectra of grossular-andradite as the rise of iron in the crystal structure from grossular to andradite after studying of Raman spectra of grossular-andradite, that is to say, their peaks shift to low wavenumber; At the same time , there are some changes in the bond angles of O-Si-O and O-Y-O:the higher of iron contents, the evidenter of splitting of two wind vibration peaks of SiO4 tetrahedron and YO6 octahedron.

通过对钙铝榴石-钙铁榴石的拉曼光谱研究发现，从钙铝榴石到钙铁榴石，随着矿物结构中铁的含量的增加，他们的拉曼光发生规律性的变化，即所有的峰向低波数方向发生漂移；同时，由于铁含量的不同使得石榴石晶体结构中O-Si-O与O-Y-O之间的键角发生了一定的变化，在其拉曼光谱谱图上表现为铁的含量越高，[SiO4]四面体和Y-O八面体的两个弯曲振动峰分裂得越明显。

This article presented a new fast algorithm of Moore-Penrose inverse for an m×n symmetric Loewner-type matrix with full column rank by forming a special block matrix and studied its inverse. Its computation complexity was O+O(n^2), but it was O(mn^2)+O(n^3) by using L(superscript +)=L(superscript TL^(-1)L.

论文通过构造特殊分块矩阵并研究其逆矩阵，给出了秩为n的m×n对称Loewner矩阵Moore-Penrose逆的快速算法，该算法的计算复杂度为O+O(n^2)，而通过L=L(上标 TL^(-1)L计算的复杂度为O(mn^2)+O(n^3)。

A series of structural parameters and component parameters of novolac resin were concluded through DEPT 135 spectrum of typical novolac resin with low or high mass fraction,including o-o,o-p and p-p condensation percentage of total condensation reaction;o-,p-percentage of active point in condensation reaction;reaction percentage of different active points;condensation ratioof phenolic resin in double ortho way and the average number of resin.

为准确了解线形酚醛树脂的组成和微细结构，利用高分辨率核磁共振技术中近年发展起来的DEPT135测定方法，测定了线形酚醛树脂的有关结构参数：o-o位缩聚百分率、o-p位缩聚百分率、p-p缩聚百分率；参与缩聚反应活性点中o位占据百分率、p占据百分率以及各个活性点参与反应百分率；同核双邻位缩聚值；不同类型酚醛树脂的平均核体数。

The main contributions of this dissertation are In chapter 2, we propose a scientific visualization system modal which is based on large-format display technology and Client-Commware-Server structure. In chapter 3 and chapter 4, we accomplish two large-scale scientific visualization systems. In chapter 5 and chapter 6, we propose HFFT on hexagon and parallel dodecahedron domains, and reduce the computational complexity from O and O to O and O . Lastly, we propose a parallel HFFT on distributed memory computers.

本文的主要贡献如下：提出了使用大屏幕显示技术、适用于大规模科学计算可视化系统的Client-Commware-Server模型；实现了油藏数值模拟和分子模拟两个大规模科学计算的可视化系统；给出了二维三方向六边形区域、三维四方向十二面体区域上的HFFT算法，将变换的计算复杂度分别从直接计算的O和O量级降到了快速算法的O和O量级；最后，本文给出了一种基于分布式存储的并行HFFT算法，并对影响、提高并行算法的若干因素进行了分析。

The results of SEM, XRD and XPS analysis show that electrolytically etched surface consists of Al and Al〓O〓. Al〓O〓 concentrates in pattern area and exists in forms of α-Al〓O〓 and γ-Al〓O〓.

Al-Mg-Si合金经电解刻蚀图纹化后，SEM、XRD和XPS分析表明，刻蚀表面由Al和Al〓O〓组成，Al〓O〓主要集中在图纹处，以α-Al〓O〓和γ-Al〓O〓的形式存在。

The whole sintering process of SHS converter fettling materials can be divided into three steps. The first step is the decomposition reaction of carbonates and sodium nitrate, which is an endothermic reaction. The second step is the SHS reaction, i. e. thermite reaction, the metal of Al reacts with CO〓, O〓, NO〓, Fe〓O〓 to form Al〓O〓. The speed of thermite reaction is very quick, and accompanied with large amount of heat emission and temperature rise. The third step is the reaction of spinels formation. The Al〓O〓 produced by SHS reacts with MgO to form spinels.

整个SHS补炉料的烧结过程分三步进行：第一步为碳酸盐、硝酸钠的分解反应，属于吸热反应；第二步为SHS反应即铝热反应，金属铝粉与CO〓、O〓、NO〓、Fe〓O〓等反应生成Al〓O〓，反应速度很快，并伴随有巨大的放热和温度升高；第三步为合成尖晶石的反应，SHS反应产物Al〓O〓与MgO反应生成尖晶石。

Main Food Section 主食部分 The refrigeration system shall be designed to maintain the temperature of 4 o C to 8 o C average or below within the cabinet under all operating conditions in ambient air temperatures between 18 o C and 40 o C, with the cabinet door opened for period of 40 seconds every 30 minutes under the test condition.

冰箱的系统设计是：在检验条件下，橱柜内的冰箱正常运作，橱柜门每隔30 分钟开启40 秒，橱柜内的冰柜会保持内部平均温度低于4 o C 到8 o C，而周围环境温度为18 o C到 40 o C之间。

The company mainly produces all kinds of cobalt salts products, has formed a cobalt chloride (CoCl 2 6H 2 O), cobalt oxalate (CoC 2 O 4 2H 2 O), cobalt oxide (CoO Co 2 O 3), Cobalt sulphate (CoSO 4 7H 2 O) and cobalt carbonate (CoCO 3) annual 1,500 tons (up to 2005) of production capacity.

公司主要生产各种钴盐类产品，已形成具备氯化钴( CoCl 2 · 6H 2 O )、草酸钴( CoC 2 O 4 · 2H 2 O )、氧化钴( CoO · Co 2 O 3 )、硫酸钴( CoSO 4 · 7H 2 O )和碳酸钴( CoCO 3 )年产量 1500 吨（至 2005 年）的生产能力。

The flame-retardant/smoke-suppressant of PVC may be divided into three kinds. The first is FRs , includes the compounds lying in IVB～VIB, such as TiO〓, V〓O〓, Cr〓O〓 and MoO〓; The second is FRs , includes the compounds lying in VⅡB～IB, such as MnO〓, Fe〓O〓, Co〓O〓, CuO and ZnO. The third is FRs , includes the compounds of subgroup A, for example Mg 〓, Al 〓, Sb〓O〓, carbonate and phosphate.

PVC的阻燃抑烟剂可分为三大类，第一类阻燃抑烟剂为元素周期表中IVB～VIB族的化合物，以TiO〓，V〓O〓，Cr〓O〓和MoO〓为代表，第二类阻燃抑烟剂为元素周期表中VⅡB～ⅡB族的化合物，以MnO〓，Fe〓O〓，Co〓O〓，CuO和ZnO为代表，第三类阻燃抑烟剂为三氧化二锑，氢氧化镁，氢氧化铝等主族元素的化合物。

The α-BaB〓O〓 crystal is colorless, transparent and without cracking. The cracking problem has been overcome by a special growth procedure. The dislocation density, crystallization morphology and growth habit of α-BaB〓O〓 crystal have been systematically studied by chemical etching method, X-ray laue orientation of synchrotron radiation, double-crystal diffraction topography. The growth striation and irregular dislocation consist of the primary defect in α-BaB〓O〓 crystal. The convex solid-liquid interface is stable during the whole growth process.

在国际上首次采用提拉法生长出φ50×40mm〓的α-BaB〓O〓晶体，生长方向为[0001]，晶体完整、无色透明；提出了三种固相反应的原料制备方法，并保证B〓O〓过量1mol%；采用独特的生长装置和程序有效地解决了α-BaB〓O〓晶体易开裂的问题；首先采用化学腐蚀法、白光X射线衍射术、X射线双晶衍射形貌术等研究了α-BaB〓O〓晶体的位错密度；首次采用同步辐射X射线劳埃定向术研究了α-BaB〓O〓晶体的结晶形态及生长习性；结果发现α-BaB〓O〓晶体的缺陷以位错为主，部分α-BaB〓O〓晶体中存在生长条纹。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。