Elements are the extensible engine for expressing structure in XML.

1、

Then, we determine the program of positioning and clamping the PCB. According to the specific requirements, we design the clamp mechanism with the cylinder as drives and then we choose the right cylinder.

然后，确定了PCB板定位夹紧的方案，根据PCB板夹紧时的具体要求，设计了以气缸为动力源的夹紧机构，选择了所需要的气缸。

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In addition, HEV is driven by at least two sources of power ( usually engine and electric motor/ battery), and through appropriate control strategy, the two or multiple power sources are working in a range of high efficiency, significantly improving the vehicle fuel economy.

此外，HEV至少由两种动力源（一般为发动机和电机/电池）驱动，通过适当的控制策略使两种或多种动力源都工作在高效率区间，显著提高整车的燃油经济性。

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Using the new heat-resistant propellant as the chemical motivity of the bridge plug sitting tool, the charge configuration is designed, the bridge plugging operation is reliably accomplished in high and normal temperature condition, and the usage property corresponds with the product of the Baker corporation.

用新型耐热火药为化学动力源构建的桥塞座封工具装药结构，在高温、常温条件下能可靠完成桥塞座封操作，其使用性能与美国Baker公司相应产品相当。

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Drive motor is a mechanical power source FSE car, have a significant impact on the racing competition results.

驱动电机是FSE赛车的机械动力源，对赛车的参赛成绩有重大影响。

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This electric vehicle powered primarily by 30 kw proton exchange membrane ( PEM) fuel cells, with Lead-acid battery as assistant power, and with focus classis as virtual vehicle classis.

并采用与focus汽车同样的底盘和车身，用30kW质子交换膜燃料电池为主动力源，以铅酸蓄电池为辅助动力源。

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This paper introduces the function and structure of ESCP, and discusses the implemention strategies in knowledge acquirement and knowledge expression in ESCP.

简单介绍了动力煤选煤厂设计专家系统（ESCP）的内容和结构，着重讨论了本系统中知识库内容的获取和表达技术。

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7、

Study on combustibility of coal for power station

动力煤的燃烧特性研究

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Both ash and sulfur content and calorific value in Chinese steam coals

中国动力煤的灰分硫分和发热量

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Reasonable Selection of Production Process of Utility Coal

适应市场合理选择动力煤生产流程

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Problems on rational utilization of steam coals in China

我国动力煤的合理利用问题

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Analysis of the economic reasonableness about development of steam coal cleaning

发展动力煤洗选的经济合理性分析

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动力煤选煤厂设计中应注意的有关问题

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Counted Value by Ash and Heat Productivity for Power Coal and Their Relationship

动力煤的灰分计价与发热量计价及它们之间的关系

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Power coal blending for thermal electric power plant

动力煤配煤在热电厂的应用

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Pyrolysis Kinetics Analysis of Chinese Typical Steam Coals

中国典型动力煤种热解动力学分析

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Coal combustion in power plants has always been a dominant contributor to the release of sulfur dioxide, in so saying, investigations on the rule of sulfur released from power coal and the technology of control technology of SO2 have important significance.

电厂燃煤则是产生SO2的主要污染源，因此研究动力煤燃烧硫析出规律和SO2控制技术具有非常重要的意义。

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It proves that steam coal should be cleaned for to meet market demand.

证明动力煤分选，根据市场的需要，生产适销对路产品，是提高煤炭效益的关键。

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The benchmark FEX products will include traditional Asian energy products such as crude oil and thermal coal.

FEX基准交易产品会包括亚洲市场传统的能源产品，如原油和动力煤。

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The technical fundamental of coal blending for steam coals

动力煤配煤技术基础

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Study on Characteristics of Coals by Neural Networks Toolbox of MATLAB

应用MATLAB神经网络工具箱对动力煤特性的研究

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