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and technology
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  科技
     Study on Regional Innovation Ability of Science and Technology Develompment Zones in China
     中国科技园区域创新能力研究
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     Study on the Theory & Practice of Automatic Indexing of WWW Science and Technology Information Resources
     WWW科技信息资源自动标引的理论与实践研究
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     Study on the Construction of Agricultural Science and Technology Database System in China
     中国农业科技数据库系统建设研究
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     Development of Agricultural Science and Technology Park
     农业科技园区发展研究
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     Innovatory and Empirical Study on Estimating Theory and Method of the Progress on Science and Technology
     科技进步测算理论方法创新与实证研究
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  “and technology”译为未确定词的双语例句
     ARRAY DESIGN AND TECHNOLOGY RESEARCH OF a-Si:H TFT-LCD WITH HIGH QUALITY
     高品质a-Si:H TFT-LCD阵列设计与工艺研究
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     Study on Principle and Technology of On-Machine Measuring Large Gears
     大型齿轮在机测量原理及技术的研究
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     The Theory of Singular Conjugation and the Principle and Technology of 0~° Involute--Enveloping Worm Gear Drive
     奇点共轭理论与0~°渐开线包络蜗杆传动的原理与技术
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     Research on the Sub-Deep Micro Theory and Technology of IP Core Design
     深亚微米理论及IP核设计技术的研究
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     Research on Telemedicine and its Collaboration Theory and Technology
     远程医疗及其协同理论与技术研究
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     Technology;
     技术;
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     TECHNOLOGY
     技术
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     and technology communication.
     5 .从单一的教学中心向技术传播中心转变
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     PIPELAYER AND ITS TECHNOLOGY
     上管工艺及上管机
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  and technology
It is recognized throughout history that understanding the properties of resources and transforming these resources into products are regarded as the nucleus of science and technology.
      
Understanding the properties of information and transforming the information into products will then play a crucial role in the development of science and technology in the information age.
      
At the same time, the core action and the development of the theory and technology of process is also discussed.
      
At the end of this paper, the development directions of mechanical manufacturing science and technology are mentioned.
      
Unsorted database search is a very important problem in science and technology.
      
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Modern science and technology are on the brink of a significant breakthrough. It will also bring a great impact to architecture, reforming the contents, methods and devices of architectural design and renovating one's understanding of architecture.This paper attempts to present three elements——environment, systems building and computer-aided design which are significantly effecting architecture——and discusses briefly what architecture and architectural profession are approaching.

现代科学技术正酝酿着重大的突破。它将给建筑学带来巨大的冲击,变革建筑设计的内容和方法,刷新人们的认识。本文提出了正在对建筑产生深远影响的三个方面:环境、建筑体系和电子计算机辅助没计。并简要地论述了与此有关的建筑发展趋向和建筑设计工作者的职责。

In this paper, a noval process for extraction of potassium from seawater at constant temperature with the Chinese natural zeolite as adsorbent is described. The result is as follows: both 3.5N NH4Cl and mixed NH4C1-NaCl solution (NH4C1 3.5N, NaC1 2.8N) are effective scrubbing agents of K+, but the NH-type zeolite, or else the quantity of NH which is carried away by sea-water would be too great. In order to depress the lose of ammonia, technological experiments are conducted to test the effects of modification...

In this paper, a noval process for extraction of potassium from seawater at constant temperature with the Chinese natural zeolite as adsorbent is described. The result is as follows: both 3.5N NH4Cl and mixed NH4C1-NaCl solution (NH4C1 3.5N, NaC1 2.8N) are effective scrubbing agents of K+, but the NH-type zeolite, or else the quantity of NH which is carried away by sea-water would be too great. In order to depress the lose of ammonia, technological experiments are conducted to test the effects of modification methods of zeolite: single stages modification with different ratio of scrubbing agent and modifying agent. An effective process for depressing ammonia loss at constant temperature have been obtained, when natural zeolite used as K+ adsorbent at constant temperature, the NaHCO3 mother liquid of Solvay-soda process, after stripping off NH3, may be taken as scrubbing agent. Extraction of potassium is combined with hot ammonium chloride process, such technological scheme is rational from the standpoint of economics and technology. The main technical characteristics are: effective adsorption capacity of K+ by zeolite=13kg K+/Ton, production rate of Zeolite=0.271 kg K+/Ton. hr, ammonia loss is dependent upon the ratio of the quantity of extracted K+and Na2CO3 is varied from 5 to 59kg NH3/Ton.KC1, Scrubbed solution K+ varied from 19 to 20 g/l; composition of mixed NH4C1-KCl fertilizer is NH4Cl:KCl=3.17~3.27:1.

本文以国产天然沸石为吸附剂,研究在常温下进行海水提钾的新工艺。试验表明:3.5N左右的 NH4Cl 洗脱剂或 NH4Cl—NaCl混合洗脱剂(NH4Cl3.5N; NaCl2.8N) 均有较强的洗脱K+的能力。但NH型沸石需再用饱和盐水改型,回收柱上的NH,否则在海水吸附钾时随海水流失的NH量太大。为了降低氨的损耗,工艺试验着重在改型上进行多方面的探索和考察:用盐水一次改型、分段改型(洗脱剂与改型剂不同配比时的分段改型)。最终提出了有效降低氨耗的常温洗脱的工艺路线,即以天然沸石为吸附剂,在常温下以滤碱脱氨母液为洗脱剂,将海水提钾与热法联碱工业相结合的新途径。工艺流程的安排在经济上较为合理,在技术上是可行的。小试达到的主要技术指标为:沸石对钾的有效吸附容量:13公斤K+/吨沸石;沸石生产强度:0.271公斤K+/吨·小时;氨耗系由提钾与制碱的比例而定,可控制在5~59公斤氨/吨氯化钾;洗脱液K+含量19~20克/升;所得NH4Cl-KCl混肥的组成:NH4Cl与KCl之比为3.17~3.27:1。

The author presents some personal viewpoints on the development of technical sciences including its significance and its relationships with basic sciences and technology, its educational program and personnel training, finally the basic guidelines for developing technical sciences and the problems about its developing rate.

作者对技术科学的发展提出几点个人的看法,包括技术科学的地位与科学技术整体的关系,技术科学的重要性,技术科学的教育与人才的培养,技术科学发展的准则,以及技术科学发展的进度问题。

 
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