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Abstract: The study of Pingwu cattle――The ecological factor of the main place of origin,its appearance,its body measurements and the comparison with other cattle breeds in Sichuan,Shows that,in body measurements,appearance,and body measurements index,Ping
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文摘:对平武黄牛主产区生态条件的调查、外貌的观察和体尺的测定，与四川现有黄牛地方品种的比较分析，结果表明平武黄牛在体尺、外貌、体尺指数等方面有别于其它黄牛品种，是川西北山区良好的役用型黄牛种群，具有向役肉兼用型方向发展的优良特性。 |
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Abstract: The subject build is a focal point of hospital technology build.
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文摘:学科建设是医院技术建设的着眼点。 |
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Abstract: The subject is reviewed on the value of low chilling peach and nectarine varieties,breeding history,breeding characters,genetic background,breeding objective and introduction of the advanced varieties as well as the breeding objective in China.
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文摘:从短低温桃、油桃品种的价值、育种历史、特点、遗传背景、主要育种目标和优良品种介绍等方面概述了短低温桃品种的研究进展，提出了我国短低温桃育种的目标。 |
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Abstract: The summarization and tromsformation of the heattreatment circle of Shanghai are dwelled shorty upon in this paper as well as the forecast of market.The plan and proposal of the trade plan are presented as well.
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文摘:简要分析了上海市热处理行业概况，热处理行业发生的变化，市场预测与需求，提出了行业规划思路和目标建议等。 |
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Abstract: The surface defects of silver coins was analysed with augerelectron spectroscopy (AES), Scanning electronic microscope (SEM) and energy dispersive spectrum (EDS).
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文摘:采用扫描电镜、能量色散谱和俄歇电子能谱检测方法，对银币表面缺陷进行了分析。 |
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Abstract: The synthesis,adsorptive properties and some other mechanical properties of a kind of high water-adsorbing fiber were studied,paper made from this high water -adsorbing fiber beaten with 80%(wt) cotton,demonstrated that the fiber had rap id adso
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文摘:本文报道了一种高吸水纤维的合成、吸水性能及其部分物理机械性能，并利用这种高吸水纤维与纯棉纤维按1：4的比例进行混合打桨而制成一种高吸水纸，对这种吸水纸也进行了吸水性能及部分机械性能的测定，结果表明所合成的高吸水纤维对蒸馏水，自来水及人工尿液的吸附速度快，吸收量高，并且可在一定的压力下保持较高的吸水量，还可以与棉纤维混合成纸。 |
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Abstract: The synthesis,characterization,reaction mechanism and progress in indus try of ethylene/propylene elastomer with metallocene catalysts were discussed,Th e metallocene catalytic systems and the structure and properties of the elastome r were intr
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文摘:论述了茂金属乙丙弹性体的合成、表征、反应机理及工业化进程，着重介绍了茂金属催化体系和茂金属乙丙弹性体的结构和性能。 |
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Abstract: The synthetical evaluation method in fuzzy mathematics is appliedto evaluate the working level of the quality control station, the evaluation indexes system is put forward and the weight of each factor is determined by using AHP, the fuzzy synth
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文摘:应用模糊数学的多层次综合评判法，对质控室工作水平进行了研究，提出质控室综合评价的指标体系，运用层次分析法确定各个因素的权重，并建立模糊综合评价的数学模型，结合实例进行了分析。 |
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Abstract: The system composed of intelligent control modules for three-phase induction motors is introduced in this paper.This module can conduct starting,reverse braking,and reverse conrtol with current limiting resistance.Besides,it can also detect low
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文摘:介绍了一种智能三相电机控制模块组成的系统，能在串电阻(电抗)起动、反接制动和换向控制的基础上进行欠压检测、过载检测、断相检测及电机故障保护.尤其适用于起动、制动和换向控制频繁的电机控制场合. |
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Abstract: The system of the pyrotechnic oscillation burning ha ve been studied with the experimental research and the reaction mechanism analys is methods .The phenomenon of the oscillation burning has been observed and reco rded, and the relationship of
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文摘:对具有振荡燃烧现象的体系进行了实验研究和反应机理分析；对振荡燃烧现象进行了观察和记录，得到了各反应物与振荡燃烧现象的关系。 |
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Abstract: The technical background, the current status and existing problems of the same subject both at home and abroad in the research field of the calendar life of the military aircraft were presented.
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文摘:介绍了军用飞机日历寿命研究的技术背景和国内外同类研究概况以及存在的问题。 |
