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Abstract: Based on the basic principle of reflection and transmission in the process of the propagation of logitudinal wave, this paper recounts a new theory and method for the application of pile body completeness inspection data with reflection wave met
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文摘:从纵波传播过程的反射和透射的基本原理出发,介绍了反射波法桩身完整性检测数据在频率域中定量确定视反射系数和反射波往返时间的一种新的理论和方法。 |
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Abstract: Based on the brief introduction of the ohgin,distribution and the collection and conservation of the germplasm resources of apricot,mainly on the variety classification,pollination biology,evaluation of palynology and molecular biology,the genet
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文摘:在简要介绍杏的起源、分布及种质资源收集保存的基础上,着重对杏品种资源的分类、授粉生物学、孢粉学及分子生物学评价以及杏杂种后代遗传变异特点、育种目标及育种技术进行了综述,并提出了今后的研究方向。 |
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Abstract: Based on the cases from home and abroad, the article lists seven principles of enterpriser marketing and the means to prevent the seven major traps.
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摘要:综合国外、国内的若干实例,提出了企业家营销的七大要领,以及要防止陷入的七大误区。 |
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Abstract: Based on the comparison between the prescriptions of Zhongjing's Prescriptions and Jotting Prescriptions, it can be seen that Xiao pin fang (Jotting Prescriptions) in many aspects,reflecting partly the tendency of changes in prescriptions from t
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文摘:比较仲景医方和《小品方》所载方剂,可知《小品方》在继承仲景医方的基础上,又在多方面有所发展,这些发展可部分反映东汉至南北朝刘宋时期200年间方剂变化的趋势。 |
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Abstract: Based on the concept of space migration length of photo-activation species,the analytical expression of the total number N of photo-activation species that can reach a segment on the substrate in the cubic deposition reaction space is derived.Th
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文摘:基于光激活物质空间迁移长度的概念,推导出方形反应空间中到达基片上单位面积的光激活物质总数的解析表达式,对光化学汽相沉积中淀积速率和基片位置的关系进行了模拟和分析.模拟结果同实验结果符合良好. |
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Abstract: Based on the current environment for Mobile Communications Equipment Control System Problem analysis, Mobile Communications Equipment with its own characteristics, the use of mobile communication system of communication resources from the monito
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摘要:本文通过对当前移动通信机房环境监控系统存在问题的分析,结合移动通信机房自身的特点,利用移动通信系统的通信资源,从监控系统的实现原理,环境和动力源等相关监控量的采集,基站侧设置等方面进行分析,提出了移动通信机房应急性监控系统的实现方案以及基于该方案的具体应用。 |
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Abstract: Based on the data from the runoff plots, analyzed on the regularity and affected factor of the runoff and sediment yield in the farmland with different underlayer condition in the loess hilly areas of Changwu County, Shaanxi Province, and point
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文摘:以径流小区的观测资料为依据,对陕西长武不同下垫面条件农田产流产沙规律及影响因素进行了分析,指出降雨强度、降雨历时、坡度和覆盖条件是影响黄土沟壑区农田产流产沙的最主要因素。 |
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Abstract: Based on the data obtained from field observations and deformation monitoring,this paper deals with the deformation and failure of a double-decked slope composed of soft rock strata in its lower part and hard-brittle rock strata in its upper par
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文摘:以现场考察和变形监测资料为依据,探讨一个下部有软弱基座,上部为硬脆性坡体的“二元结构”边坡的变形破坏问题,揭示这类边坡的变形总是以下部软弱岩体的不均匀压缩流变为先导,进而引起上部硬脆性坡体的拉裂与倾倒,最终通过渗入水的作用,使下部承载状况已进一步恶化了的软弱岩体,沿剪应力集中带发生剪切破坏而导致整个变形坡体的下滑。 |
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Abstract: Based on the deformation characteristics of the tread element at typical load cases,this paper determines the displacement functions of the element by using the energy method and derives the theoretical formulae for the apparent compressive stif
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文摘:根据轮胎胎面单元在典型工况的变形特点,用能量法确定了胎面单元变形的位移函数,导出了轮胎胎面单元表观压缩刚度和表观剪切刚度的理论计算式。 |
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Abstract: Based on the design method and design means of the explosive network, CAD techno logy is used to design the explosive network, and the research content and schem e are given.
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文摘:从爆炸网络的设计方法和设计手段出发,采用计算机辅助设计(CAD)实现爆炸网络的设计,提出了研究内容和实施方案。 |
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Abstract: Based on the destruction mechanism of earthquake to buildings and the theory of frame e-lastic-plastic force, a discussion is made of how to enhance the antiseismic ability of frame structure dur-ing the construction.
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文摘:针对地震对建筑物的破坏机理,根据结构弹塑性理论,提出了在施工中为提高框架结构抗震能力应特别注意的问题。 |