查询词典 sulphur

Using the formula supplied with the standard absorption curve, determine the amount of sulphur dioxide in the test solution from the absorbance measured.

用标准消光曲线提供的公式，从测量的吸收率来测定测试溶液中二氧化硫的量。

Bring forth polar plate's sulphur acidify cause have which.?

产生极板硫酸化原因有哪些。？

By examining a sample of the pus under a microscope, it is possible to show whether there are any yellow sulphur granules in the fluid, and to discover if the actinomyces species of bacteria are present.

通过研究样本的脓在显微镜下，是有可能的，以显示是否有任何含硫量的黄色颗粒在流体，并发现如果放种细菌都在场。

The Zijinshan copper-gold deposit is the high-sulphur epithermal deposit,which is characterized by both the high argillaceous alteration of dickite and alunite and the copper mineral association of enargite, digenite and covellite.

紫金山高硫浅成低温热液型铜金矿床以一套独具特色的由地开石、明矾石组成的高级泥质蚀变和由硫砷铜矿、蓝辉铜矿、铜蓝组成的铜矿物组合为特征。

Using mordern physical chemistry techniques (such as XRD、 TG-DTA、 IR、 XPS and 〓Xe-NMR)、 chemical adsorption techniques (NH〓-TPD、 H〓-TPD、 TPO、 TPR etc.) and pulse flow microreaction of n-hexane、 methylcyclopentene and n-hexane containing 0.2ppm thiophene, we studied mainly the following three points:(1). the changes occured during the calcination pretreatment of Pt ammine complex supported on β and L zeolites;(2). the effect of structure and acidity-basicity of zeolite on the dispersion and electron state of Pt particles; and (3). the influence of second metal component on the reactivity of nhexane aromatization and sulphur-resistance of Pt/L zeolite catalyst. Several interesting and valuable results are obtained and summerized as follows

本论文运用各种近代物理表征方法(XRD、BET、TG-DTA、IR、XPS和〓Xe-NMR)、化学吸附技术(NH〓-TPD、H〓-TPD、TPO、TPR等)和正己烷、甲基环戊烷及含噻吩正己烷的脉冲微反等方法，着重研究了(1)载Pt的β和L沸石在分解预处理过程中发生的变化；(2)沸石载体结构及酸碱性对Pt粒子分散及电子状态的影响；(3)第二金属组份对载Pt沸石催化剂上正己烷芳构化及抗硫性能的影响等，得到了某些有意义的结果。

It is of great economic importance because it assists in the formation of a ""trap"" structure for oil accumulation, in addition to its associated deposits of anhydrite, gypsum and sulphur.

这在经济上有极大的重要性，因为它可被用来帮助"圈闭"结构的形成，在形成无水石膏、石膏和硫磺的同时，有助於石油的积聚。

Industrial gas / liquid purification catalyst, adsorbent organic compounds and metals as the main research directions, with eight experienced and deep support of the Engineering and Technology, Taiyuan, Qingdao University, Beijing Nonferrous Metal Research Institute of University established a long-term Relations of cooperation, is now a sulfur-tolerant shift catalyst, at room temperature fine desulfurizer, antichlor, sulphur recovery catalyst.

以工业气体/液体净化催化剂，吸附剂及贵金属有机化合物为主要研究方向，拥有八名经验丰富，学养深厚的高工，并于太原理工大，青岛大学，北京有色金属研究院等高校建立了长久的合作关系，现已形成耐硫变换催化剂，常温精脱硫剂，脱氯剂，硫磺回收催化剂。

The aim of the STEEL REFINING SYSTEM is to remove oxygen, sulphur, carbon, slag from molten steel and sharply matching molten steel component by arc heating and blowing inert gases.

设立该项目的目的是将装有初炼钢液的钢包边电弧加热边底吹惰性气体，进行脱氧、脱硫、深脱碳、去除夹杂及成分微调等。

Among the aromatic hydrocarbon, there are not only the compound of sulphur but also a lot of normal aromatic hydrocarbon.

硫的加入有利于提高残渣中的有机碳含量。

For example, acetylene generated by the carbide process contains arsenical and sulphur compounds, and other impurities, which must be removed by scrubbingwith concentrated sulphuric acid before it is sufficiently pure for reaction with hydrochloric acid (此处有误,应为hydrochloride氯化氢) to produce dichloroethane.

例如，由碳化钙发生的乙炔气含有砷和硫的化合物以及其他的杂质，必须在乙炔有足够的纯度与氯化氢反应制造二氯乙烷之前，用浓硫酸洗去这些杂质。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐