查询词典 metal detector

The metal ions form ionic bonds, which are nondirectional, with oxygen atoms that previously had been bonded rigidly to specific Si atoms.

金属离子与氧原子形成无方向性的离子键，而氧原子之前一直牢固结合在特殊的硅原子上。

Because of the nondirectional property of ionic bond and the fully delocalized property of pi electrons on carbon layers, translation will not change the electronic structure of carbon layers, resulting in that A-GIC and AE-GIC hare quite good lubrication as well. The electrons come from metals mainly transfer to the delocalized pi orbitals of carbon layers, and the increase of delocalized electrons will make metal graphite intercalation compound more electro-conductive than graphite itself. Because ionic bond between metals and carbon layers is weaker and its lattice energy is much less than that of typical NaCl crystal, so metals could be left from interlayers. The Mulliken populations of C-C in intercalation compounds are smaller than that of graphite, and the HOMO energy level of GIC is higher than that of graphite too. These Lead to that GIC will easier be oxidized.

由于离子键没有方向性，又由于碳层中的π电子是充分离域的，所以碳层不会由于平移而改变其电子结构，金属石墨层间化合物仍具有很好的润滑性；金属失去的电子主要转移到碳层的离域π轨道中，碳层离域电子增多使金属石墨层间化合物的导电性比石墨增强；金属与碳层间的离子键强度比较弱，其晶格能远小于典型的离子晶体，因而金属易从石墨层中脱出；金属石墨层间化合物中的C-C间Mulliken布居值小于石墨中C-C间的值，且金属石墨层间化合物的HOMO能级也高于石墨的HOMO能级，所以石墨层间化合物中的碳原子较石墨更易被氧化。

China Nonferrous Metal Mining Co., LTD., Beijing 100055, China

中国有色矿业集团有限公司，北京 100055

China Nonferrous Metal Industry's Foreign Engineering and Construction Co., Ltd, Beijing 100038, China

中国有色金属建设股份有限公司，北京，100038

Key Laboratory of Nonferrous Metal Materials Science and Engineering, Ministry of Education

中南大学有色金属材料科学与工程教育部重点实验室，长沙 410083

The Key Laboratory of Nonferrous Metal Materials Science and Engineering, Ministry of Education

中南大学有色金属材料科学与工程教育部重点实验室，湖南长沙，410083

Nonferrous metal materials are among the most important parts of advanced materials .

有色金属新材料是新材料的一个极其重要的组成部分。

I have been working for one year after graduation in a company engages in overseas nonferrous metal exploration.

目前我在一家从事海外有色金属资源开发的公司工作，已有一年工作经验。

Key Laboratory of Nonferrous Metal Materials Science and Engineering,Ministry of Education, Changsha 410083, China

有色金属材料科学与工程教育部重点实验室，长沙 410083

Key Laboratory of Nonferrous Metal Materials Science and Engineering, Ministry of Education, Central South University, Changsha 410083

中南大学有色金属材料科学与工程教育部重点实验室，长沙 410083

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。