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Abstract: Large time delay exists in complicated practical processes.For example,in FCCU (Fluidized Catalytic Cracker Unit) reactor-regenerator,the feed is preheated through heat exchanging from fractional column slurry,thus results in large time delay.A
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文摘:实际的复杂工业过程，往往具有大的时滞，例如：炼油厂催化裂化装置的反应再生系统，其原料油预热通过油浆换热实现，因此时滞特别大.本文针对这一类大的时滞过程，设计了以动态矩阵控制为核心算法的预测控制系统，运行实践表明：这一控制方案比原PID控制在控制质量上有较大提高. |
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Abstract: Large volume hyperbaric oxygen tank for medical usage was successfully constructed in our hospital according to “Regulatory and Safe Regime of Oxygen Tank for Medical Usage” by administration.
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文摘:我院为首批根据国家《医用氧舱安全管理规定》最新标准通过新建高压氧舱验收的单位之一。 |
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Abstract: Latest progress in oil refining catalyst techniques abroad was reviewed, including FCC, hydrofining, hydrotreating, hydrocracking and catalytic reforming catalysts, with emphasis on new products of some representative producers of oil refining c
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文摘:以国外炼油催化剂生产具有代表性的大公司推荐的新产品为例，综述了催化裂化、加氢精制、加氢处理、加氢裂化和催化重整五类石油炼制催化剂的技术发展近况，并列举了部分应用实例。 |
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Abstract: Layout forms of irrigation canal system can be generally classified as three categories: series-wound canal system, equivalent shunt-wound canal system and nonequivalent shunt-wound canal system.
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文摘:灌溉渠系的布置形式一般可分为串联渠系、等效并联渠系和非等效并联渠系，对这3种灌溉渠系水利用系数进行了理论研究。 |
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Abstract: Legal application for the system of damages is applied widely in Common Law, compared to traditional civil system of compensatory damages.
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摘要:惩罚性损害赔偿制度是相对于传统的补偿性损害赔偿制度而言的，它是英美法中广泛认可的一种法律制度。 |
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Abstract: Liquid-phase chromatographic instruments and electric conductivity detectors produced by two factories were connected and adjusted for the purpose of their smooth operation.In addition,the optimum working conditions for detecting some inorganic
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文摘:对来自2个厂家的液相色谱仪和电导检测器进行连接、调试，使其能正常运行，并确定检测饮水中某些无机阴离子的最佳工作条件。 |
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Abstract: Literature is colsely related to language,cultural background,slang and writing,etc.Therefore,the positive role of literature in English teaching shouldn't be negelected.
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文摘:英美文学在语言、文化背景、俚语及写作等方面对提高学生英语水平都有较大帮助，因此不可忽视英美文学教育在英语教学中的积极作用。 |
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Abstract: Liveness and safeness are important behavioral properties of nets (systems).Many powerful results have been derived for some subclasses of Place/Transition nets (systems).The aim of this paper is to draw a general perspective of the liveness and
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文摘:活性与安全性是网系统重要的行为性质.对于位置/变迁网系统的一些子类，人们已为之导出许多有意义的结果.该文贡献在于为一种称为加权扩充自由选择网的网系统子类找到活性与安全性的一般性质.文章先给出其活性等价条件的简要与直观的证明,随后,对于这一类安全的子系统又给出活性的充分必要条件. |
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Abstract: Loop shape in fabric are analysed in this paper and the equation about law between remnant curvature and yarn linear density,yarn mechanical properties and knitting elements dimensions is set up.Based on the theoretical analysis and experiments,
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文摘:分析了织物中线圈的形态,推导出了线圈残余曲率与纱线细度、纱线机械性能及成圈机件尺寸之间的关系式.在理论分析和实践的基础上讨论了线圈的残余曲率与织物外观形态和尺寸间的关系. |
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Abstract: Low temperature separation, uses the high energy from the wellstream to throttle and reduce pressure, then remove the condensate.
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文摘:低温分离，是利用地层本身能量节流降压制冷，用低温分离方法脱除天然气中凝液的处理工艺。 |
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Abstract: Luxury consumption is always connected with motivation of flaunt.
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摘要：消费的奢侈性通常被认为与炫耀动机有关。 |
