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and requirement
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  及其需要量
     STUDY ON ENERGY METABOLIC PARAMETER AND REQUIREMENT IN THE EARLIER GROWTH STAGE OF PHEASANTS
     雉鸡育成前期能量代谢参数及其需要量的研究
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     Studies on Metabolic Parameter and Requirement of Energy in the Later Stage of Growth of Pheasant
     雉鸡育成后期能量代谢参数及其需要量的研究
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  “and requirement”译为未确定词的双语例句
     Calculation of Production and Requirement of Scrap Steel in Steel Plant
     钢厂废钢生成量与需求量的计算
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     Development of the Iron-Steel Industry Technology in China and Requirement for Refractory Material
     我国钢铁生产技术的发展及对耐火材料的需求
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     Situation of Health Service and Requirement for the Woman Aged from 40 to 60 in Community of Guangzhou
     广州地区40~60岁妇女社区卫生服务及需求状况的调查分析
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     The Forming of Electronic Publication System of Coloured Maps and Requirement of Graphic Data
     彩色地图电子出版系统的构成与图形数据的要求
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     This article mainly discusses the enforcement rule and requirement of intelligent teaching system mode based on digital logic course;
     文章主要探究了基于数字逻辑课程的智能教学系统模型的实施、规则和要求;
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     environmental requirement.
     光胶环境要求;
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     Testing requirement
     测量的要求
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     1. Possibilities and requirement.
     一、历史教学中运用文学作品的可能性与必要性。
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     Requirement Analysis and Design of Page
     网页的需求分析与设计
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  and requirement
The dP's feedback and requirement of completeness appear to aid learning most.
      
In contrast to the United States and most European countries, there is presently little interest and requirement for experimental mechanics within private industry and within the government agencies which do not deal with defense related activities.
      
It is concluded that although improvement is obtained it ,ay not be significant enough to offset the increased overhead and requirement for task information.
      
Infested grains also showed substantial reduction in essential amino acid index, calculated biological value and requirement index.
      
Possible involvement of glutamic and/or aspartic acid residue(s) and requirement of mitochondrial integrity for the protective e
      
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This paper discusses some important problems of the design of blasting in dam con- struction by directional explosion. The planning of explosive charges is first mentioned.The effect of blasting order on the shape and height of piling is then discussed,and some principles for the deter- mination of rational order of blasting are outlined: 1.If the slopes of the two opposite river banks are unequal,but the quantities of materials to be projected from them to the dam are equal,then the flatter bank should be blasted...

This paper discusses some important problems of the design of blasting in dam con- struction by directional explosion. The planning of explosive charges is first mentioned.The effect of blasting order on the shape and height of piling is then discussed,and some principles for the deter- mination of rational order of blasting are outlined: 1.If the slopes of the two opposite river banks are unequal,but the quantities of materials to be projected from them to the dam are equal,then the flatter bank should be blasted earlier than the other. 2.If equal quantities of materials are projected from the two opposite banks of equal slopes,then they should be blasted simultaneously. 3.If the quantity of materials projected from one bank is much greater than that from the other,then the forth bank should be blasted earlier. According to the characteristics and requirements of dam construction,a formula considering the slope effect of ground surface is given for evaluating the weight of ex- plosive charges.And,in order to obtain a rather uniform velocity distribution of the thrown material over the region between charges,a formula for determination of the spacing of the explosive charges is also obtained. Based on the theory of ballistics,with the consideration of all factors,such as para- meters of explosive charge,air resistance and slope of free surface etc.,another formula for calculating the maximum distance of projectiles is given as follows: L_(max)=(A_i~2)/(gW~(2m)F(s))sin2(α—)con~(2m)+(3sin(α-))/(2cos)W. With the same consideration,a method for calculating the piling of projected materials is also presented. Finally,a general idea of how to choose the best scheme of blasting is briefly des- cribed.

本文就定向爆破筑坝时爆破设计计算的主要问题进行了初步探讨.文中,首先讨论了药包规划方法和爆破程序对坝体堆高和成型的影响,并概括出确定合理爆破程序的几点原则.其次,根据定向爆破筑坝的特点和要求,认为药包间距计算应以药包间被爆岩石具有均匀初速度分布为前提,装药量的计算应考虑到斜坡的影响,并给出了相应的计算式.此外,用弹道理论法在考虑了爆破参数、空气阻力和地面坡度影响等所有因素的情况下,导出了最大抛距计算式和堆积计算方法.最后,扼要地讨论了有关最优方案的选择问题.

In this paper the possibility and requirements for growing olive in China were discussed; seed characters including the germination test, the availability of embryo in each seed, the water permiability of seed coat, the chemical and mechanical treatments of seed for hasten-ning germination before sowing, the test for interspacing sowing time, as well as the cutting and grafting experiments have been analyzed and conducted. It is suggested that autumn sowing with seeds mechanically decapited (tip-brokened)...

In this paper the possibility and requirements for growing olive in China were discussed; seed characters including the germination test, the availability of embryo in each seed, the water permiability of seed coat, the chemical and mechanical treatments of seed for hasten-ning germination before sowing, the test for interspacing sowing time, as well as the cutting and grafting experiments have been analyzed and conducted. It is suggested that autumn sowing with seeds mechanically decapited (tip-brokened) and soaked in 0.5% thiourea for 24 hrs. accelerates the germination. Rooting with young seedling cuttings also produce satis-factory results.

我国自1956年开始进行油橄榄的引种驯化工作。本文讨论了油橄榄的经济意义、生态特性、在我国引种成功的可能性;并报导了在繁殖技术和适应性方面的观察研究结果。

The contradictory relation and requirement of turn-off and turn-on time in constructing a 20 KC 100A thyristor are discussed. When the turn-off time is controlled within 3-5μs, and the turn-on time is controlled about 2μs., most of the devices can work satisfactorily. A simple gate structure having a larger cathode area is recommended. The increased value of the long base region resistivity of the pellet after the gold diffusing is measured and with the appropriate technology the blocking voltage of the...

The contradictory relation and requirement of turn-off and turn-on time in constructing a 20 KC 100A thyristor are discussed. When the turn-off time is controlled within 3-5μs, and the turn-on time is controlled about 2μs., most of the devices can work satisfactorily. A simple gate structure having a larger cathode area is recommended. The increased value of the long base region resistivity of the pellet after the gold diffusing is measured and with the appropriate technology the blocking voltage of the pellet using the 250μ 20Ω cm silicon slice can reach 1200V.

本文讨论了20千周正弦波100安可控硅元件的关断和开通时间的对立统一关系和要求。 当关断时间控制在3到5微秒,开通时间控制在2微秒时,多数元件都能满意地工作。为增 加阴极面积,介绍了一个简单的控制极结构,测定了扩金后管芯长基区电阻率的增长情况, 选用厚度250微米、20欧姆·厘米的硅片制成元件后的阻断电压达到1200伏。

 
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