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Based on the characteristics of measurement safety inspection system for railway freight transportation under the condition of electrification and informationization, the essay the nessity to apply lightning proof by modern proof theory, and introduces th
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摘要针对电气化、信息化条件下铁路货运计量安全检测系统的特点，利用现代防雷理论分析对其进行雷电防护的必要性，并对其综合防雷技术进行了相应介绍。 |
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Based on the characteristics of molecular structure, dyeing matrixes and adjacent matrixes are used to characterize molecular structure, and a new method, the group bond contribution method, is developed to predict the refractive indexes of alkane from th
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摘要根据分子结构的特点，通过用染色矩阵和邻接矩阵对分子结构进行矩阵化表徵，发展了一种根据分子结构信息预测烷烃折光指数的新方法－基团键贡献法。 |
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Based on the characteristics of music, rhythm and tune of composition, the article tries to demonstrate how to cultivate musical expression power with piano teaching in normal college.
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摘要本文拟从高师钢琴教学中涉及的音乐特征、乐曲节奏和乐曲旋律等三个基本方面入手，讲述高师钢琴教学中学生音乐表现力的培养。 |
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Based on the characteristics of natural gas generation anddistribution as well as the that of formation pressures in the east part of Sichuan Basin,migration and accumulation mechanism of natural gas in Silurian-Carboniferous petroleum system in the area
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根据川东地区石炭系、志留系天然气藏的形成与分布特点，结合地层压力分布特征，探讨了该区志留系—石炭系含气系统的天然气运移聚集机理，提出该系统具有箱外成藏和箱内成藏两种模式。 |
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Based on the characteristics of radiographic testing images, conventional algorithms for their contrast enhancement were introduced, including global algorithms such as linear or non-linear gray stretch, histogram equalization or modification, and adaptiv
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摘要根据射线图像的特点，介绍进行射线图像对比度增强的常用算法，包括线性和非线性的灰度拉伸、直方图均衡和修正等全局对比度增强方法，以及自适应局部增强方法。 |
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Based on the characteristics of silicon whisker, the research on the modification of PA6 by silicon whisker SiO2-JX was made, and the result showed that the tensile strength, impact strength, Brinell Hardness, and heat resistance increased with the increa
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摘要利用晶须矽纤维状的特性，对其填充于龙玻纤改性进行研究，结果表明，随晶须用量的增加，材料的拉伸强度、冲击强度，布氏硬度、耐热温度均得到提高；晶须矽可取代短玻纤使用，提高热变形温度、消除玻纤外露，降低收缩率及生産成本等。 |
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Based on the characteristics of the DC traction power system in rail transit, a numerical model is set up to calculate the leakage current and the potential variation distribution.
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摘要针对城市轨道交通直流供电系统特点建立了杂散电流的计算模型并进行了仿真。 |
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Based on the characteristics of the Quaternary tectonic activities of Babaoshan-Huangzhuang-Gaoliying fault and the regional principal compressional stress direction and regional tectonic activities derived from the recent cross-fault displacement observa
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摘要根据八宝山－黄庄－高丽营断裂第四纪地质构造活动特徵和利用首都圈地区跨断层位移最新的观测资料求得的北京地区区域主压应力方向和区域构造活动特徵，分析了八宝山－黄庄－高丽营断裂上7处跨断层位移测点的断层活动与地震活动的关系，得出了首都圈及邻近地区即将进入下一个地震活跃期的结论。 |
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Based on the characteristics of the buried culvert Under West No. 4 Ring Road in Beijing for South-to-North water transfer Project, the arrangement of the monitoring points and the monitoring results are emphatically described, and then a verification is
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摘要结合南水北调北京西四环暗涵工程施工特点，着重介绍了南水北调西四环暗涵工程施工期监测点的布置和监测情况，并通过对观测成果的整理分析，对暗涵开挖施工参数的可行性进行了验证，并为后期的施工提供了指导。 |
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Based on the characteristics of the daily regulation wave of hydropower stations, the water surface lines in the rising and falling stages are calculated by using an one-dimensional steady flow model and an unsteady flow sediment model.
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摘要根据水电站日调节波的特性，运用一维恒定流和非恒定流泥沙数学模型，分别计算了河道涨落水过程的水面綫。 |
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Based on the characteristics of the metro station and an analysis from technical and economic views, it is concluded that it is feasible to adopt ice-storage air-conditioning in water supply under great temperature differences and in air supply under low
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摘要根据地铁车站的特点，通过全面的技术经济分析，认为在地铁中采用大温差供水和低温送风的冰蓄冷空调是可行的，可以节省初期投资和运行电费。 |
