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In this paper, the main characteristics of intelligent protector of valve-controlled lead-acid batteries applied in diesel locomotives are expounded, and its necessity is discussed.
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阐述了内燃机车用阀控式密封铅酸蓄电池智能保护器的主要技术特性和加装智能保护器的必要性。 |
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In this paper, the marine route survey factors, such as water depth, bottom slope, soil shearing strength, tidal current and thunderstorm and their roles in the submarine fibre-optic cable engineering are introduced, and their roles and necessities in the
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摘要介绍了水深、海底坡度、土壤剪切张度以及潮流、雷暴等海洋路由各勘测要素及其在海底光缆通信施工中的作用，并对它们在施工中的作用及其必要性进行了评价，从而使海洋路由勘测与施工的需要结合得更紧密，更具有针对性。 |
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In this paper, the market situation, commercial trend and technological progress of unsaturated polyester resin from 2004 to 2005 were reviewed with 17 references.
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摘要综述了2004-2005年国外不饱和聚酯树脂的市场动态及技术进展。 |
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In this paper, the maximum torque per ample (MTPA) control in permanent magnet synchronous motor (PMSM) direct torque control (DTC) driving system was studied.
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摘要在永磁同步电动机直接转矩控制和最大转矩电流比控制理论基础上，研究了永磁同步电动机直接转矩控制驱动系统最大转矩电流比控制的实现。 |
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In this paper, the mechanism and forming process of the cracks in view of the stress corrosion were analyzed accounting for the pressure vessels working in the atmosphere of wet hydrogen sul-phide, sodium hydroxide or liquidized ammonia.
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本文分析了压力容器及设备在湿润硫化氢、氢氧化钠溶液和液氨介质中应力腐蚀开裂的机理和应力腐蚀开裂的过程。 |
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In this paper, the mechanism of the ionosphere contamination from the ionosphere distortion is exposed for the first time by analyzing the process of HF radar signal processing.
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该文通过对高频雷达信号处理过程的分析，阐明了电离层扰动对回波信号污染的机理。 |
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In this paper, the method combined the “S”shape sediment control dam with the dredged channel has been put forward.
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为此，在比较各种疏浚方案效果的情况下，提出了挖泥槽与增设折线型防淤堤相结合的清淤疏浚措施。 |
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In this paper, the method of dimensional analysis is used to analyze the interaction between ocean current, pipeline and seabed, and the similarity laws that should be followed in the small-scale laboratory experiments are established.
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文章应用量纲分析方法对海流、管道与海床之间的动力耦合作用进行了分析，确定了在实验模拟中应遵循的相似准则。 |
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In this paper, the music-dance art during Wei, Jin and Northern &Southern Dynasties is discussed by taking many works for example, which shows the vital artistic image and the vivid sense of rhythm, and, it filled up the harmonized appearances with artist
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从许多具体的乐舞作品来看，魏晋南北朝乐舞艺术既有生动传神的艺术形象，鲜明优美的节奏韵律感，又充满着艺术家内在气质与外在造型表现浑然一体的气象，并倾向于柔美灵动，任情适性的美学风格。 |
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In this paper, the nature ofthis problem is exemplified theoretically, showing that a system optimal matching existsin the matching system, and the conditions of matching affect directly the overall designsof optoelectronics imaging system.Some explanatio
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从理论上阐述了此问题的本质，说明了在这种匹配系统中存在系统的最佳匹配，且匹配状况直接影响光电成像系统的总体设计，并对如何描述这种关系进行一些说明和分析。 |
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In this paper, the near-infrared spectral measurement and principal component analysis (PCA) of simulated spilled petroleum samples are made, the princpal component scores are taken as the cluster characteristic variables for making fuzzy clustering, the
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摘要对模拟溢油的石油类样品进行近红外光谱检测并进行了主成分分析，以主成分得分作为聚类的特征变量进行模糊聚类，采用近红外光谱测量结合主成分分析和模糊聚类法快速识别模拟溢油种类，并建立了样品聚类与识别模型。 |
