查询词典 angle iron

Iron ore resource has become one of the important guarantee conditions for the development of iron and steel enterprises.

铁矿资源已成为钢铁企业发展的重要保证条件之一。

This article studies calcining temperatures and time effect on the content of iron pyrites in rectoriteor by calcining rectoriteor in Zhongxiang Hubei province to remove the iron pyrites in them.

以具有层状硅酸盐结构的粘土累托石为主体，经煅烧除去黄铁矿后与部分中和的丙烯酸通过水溶液聚合法制备累托石/聚丙烯酸高吸水树脂。

Moreover, the ignition loss is relatively high. Analyses for XRD show that the main mineral components of gangue are kaolinite, mica, spathic iron, iron pyrites, rutile, bischofite, quartz and calcite.

XRD结果表明：煤矸石主要矿物成分为高岭石、云母、菱铁矿、黄铁矿、金红石、水氯镁石、石英以及方解石等。

This paper analyzes the Dalian Container iron rail inter-modal environment for the development, including the revitalization of the old industrial bases in northeast Chinas macroeconomic environment, and build Dalian shipping center for northeast Asia regional environment, but also on national and local rail container iron multimodal transport laws and regulations and policy environment.

本文分析了大连铁路集装箱海铁联运的发展环境，这其中包括振兴东北老工业基地大的宏观环境，建设大连为东北亚航运中心的区域环境，也包括国家和地方上对铁路集装箱海铁多式联运的法规、政策环境。另外，大连市铁路集装箱海铁多式联运软硬件方面的设施状况也是本文的重要内容。

Research results: The proposals are offered that for ballastless track it should be given priority to lay open latch impressed rail with iron tie plate and spring having bolt, to equip with iron tie plate and single layer or double layers elastic bedding, and to equip with no bed retaining fastenings for sub -rail foundation.

研究结果：提出了无碴轨道宜优先采用带铁垫板的分开式、弹条有螺栓扣压钢轨和铁垫板、单层或双层弹性垫层、轨下基础不设挡肩扣件的建议。

Nowadays,the competition of iron and steel become more and more fierce and the ironstone's rise in price, and then the risk that iron and steel enterprises in china faced become more and more high too.

随着国内外钢铁市场的竞争激烈以及近几年铁矿石价格的上涨，中国的钢铁企业面临的风险和危机也越来越大。

After detail analysis of current several iron removal methods, it was proved that the jarosite could not only be used for iron deep purification, but also release the accumulation of sulfate, which was due to the oxidation of pyrite.

在对现行诸多除铁方案进行分析后，指出了黄钠铁矾法不仅可以从锰结核浸出氯化物溶液中深度净化除铁，而且可以同时除去黄铁矿氧化生成的大部分硫酸根，这样无疑避免了硫酸根在氯化物体系中的积累。

DSC-TGA thermal analysis and XRD characterization results demonstrate that Fe is precipitated as Fe3O4 during alkaline decomposition of jarosite. The contents of Fe, In and Zn in decomposition residue are 38.81%, 0.23% and 12.89%, respectively. After selective leaching of In and Zn with dilute HCl solution, the iron concentrates obtained from magnetic separation can be used as raw material for iron smelting.

DSC-TGA热分析和X射线衍射分析结果表明：在NaOH分解过程中，铁矾渣中的铁主要以Fe3O4形式沉淀入渣；分解渣中Fe、In和Zn的含量分别为38.81%、0.23%和12.89%；经稀盐酸选择性浸出铟和锌后，进一步磁选富集可作为炼铁原料。

For several days, the watson, Krick jubilantly are building the model in theirs office with the iron sheet and the iron wire. on February 28, 1953, the first DNA double helix structure's molecular model was born finally.

一连几天，沃森、克里克在他们的办公室里兴高采烈地用铁皮和铁丝搭建着模型。1953年2月28日，第一个DNA双螺旋结构的分子模型终于诞生了。

Iron mine resource enriches,has "abnormal area of maximal world iron mine area Kursk magnetic force".

俄罗斯铁矿资源相当丰富，有世界最大的铁矿区—库尔斯克"磁力异常区"。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。