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testing theory中文是什么意思

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  • This paper give some important definition of parameter of high - speed analog - digital circuit dynamic performance and do some research of a / d testing theory via the time - domain and frequency - domain on the basis of performance testing method of the a / d device
    本文在总结国内外已有高速模数转换器件性能测试方法的基础上给出衡量高速模数转换电路的动态性能参数的定义,对时域、频域两类测试方法进行了理论上的讨论。
  • For verify the test theory , we used the numerical method the simulated the instrument heat exchanging . thus we checked the axial heat disturbing how to influence the test results , and checked the test time ’ s influence the test result , finding the time limit to avoid the natural convection influence
    运用数值方法模拟了测试仪器的实际传热过程,结果表明热丝端部的轴向热流在短时间内对测试的结果影响较小,采用双热丝可以有效避免端部效应。
  • This paper studies how to check on the quality of motor cam on the base of describing the principle of forming exhaust and admission cam and effect in the moter . it expresses testing purpose , testing theory and method of data treating about cam . on the same time , the author designs and compiles the programme of data treating
    在论述发动机进排气凸轮形成原理以及其在发动机中的地位及作用的基础上,本文就汽车发动机进排气凸轮的检验问题进行了研究。
  • Cone - based rheometer was modified to estimate the rheological properties of fresh mortar , which can measure yield stress and plastic viscosity of mortar in relative units . effects of many factors on rheological properties of mortar were studied . a set of test theory and method for designing rheological properties of mortar was recommended
    用它研究了各种因素对砂浆流变性的影响;证实了砂浆的屈服应力与塑性粘度是互相独立的物理量,屈服应力决定变形能力,塑性粘度决定变形速率;为砂浆流变性设计提供了一套测试理论和方法。
  • On practical occasions , censored test is used , small scale sample test theory and extensive sample strategy are applied , together with point estimation , estimation of lower limit value for reliability in certain confidence and bayes method based on ? ii ? abstract prior reliability information of the old system are adopted to estimate and veflf ~ ? the new system ? reliability
    根据现场具体情况,采用截尾试验方法,应用小子样试验理论,采用扩大样本量策略,利用点估计、在一定置信度下系统可靠度下限估计和以原有系统可靠性信息为先验信息的bayes法对系统的可靠性进行估计和验证。
  • Chapter three discusses the standards and operation of oral english test for junior middle schools . this involves the four aspects : scoring , the choice and training of testers , testing scales and the reliability of scoring . chapter four describes the whole process of the oral test experiment and its results and analyses the experiment with the oral testing theories introduced above
    在尽可能广泛地、全面地收集国内外研究成果的基础之上,立足于我国初中英语教学之现实,进行口语测试之实验、问卷调查,同时就测试情况进行师生访谈,力求使口语测试方案符合我国初中英语教学之现实需要,使考试服务于教学,引导教学朝素质教育的正确方向前进。
  • The craft ' s x - ray and infrared spectrometers have gathered information about the moon ' s geology that scientists hope will advance their knowledge about how the moon ' s surface evolved and test theories about how the moon came into being . the spacecraft has also been taking high - resolution pictures of the surface with a miniaturized camera
    “智能1号”的x光和红外线分光仪采集了关于月球地质的很多信息,科学家们希望这些信息能够丰富他们有关月面进化的知识,并能为检验月球形成的各种理论提供依据。
  • In chapter 2 , eddy - current test theory is analyzed from several aspects . though analyzed the equivalent circuit of eddy - current test , the reliability of eddy - current test technology on aluminum foil thickness test on line is given and the eddy - current sensor design method and the eddy - current sensor parameters selecting are discussed
    论文第二章从多个角度分析了电涡流检测的原理,在对电涡流检测等效电路分析的基础上,提出了电涡流检测技术在铝箔厚度在线检测系统中应用的可行性,文中还详细讨论了电涡流传感器的设计方法及课题中电涡流传感器参数地选择。
  • The craft ' s x - ray and infrared spectrometers have gathered information about the moon ' s geology that scientists hope will advance their knowledge about how the moon ' s surface evolved and test theories about how the moon came into being . the spacecraft has also been taking of the surface with a miniaturized camera
    “智能1号”的x光和红外线分光仪采集了关于月球地质的很多信息,科学家们希望这些信息能够丰富他们有关月面进化的知识,并能为检验月球形成的各种理论提供依据。
  • Abstract : the testing methods , the testing theory , the testing virtue and shortcoming of the testing methods of the structure characteristics of nonwoven fabric , for example , the size of pore , the distribution orientation of fiber , the unevenness of the nonwoven web and the fabric defect are introduced in this paper . by comparison , we can see the development orientation of the testing method of the structure characteristics nonwoven fabric
    文摘:论述了非织造布的几种主要结构特性(如孔隙大小分布、纤维排列方向分布、网的均匀性及瑕疵等)的测试方法及其原理与各自的优缺点.通过对比说明非织造布结构特性的测试方法的发展方向
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Last modified time:Fri, 15 Aug 2025 00:29:56 GMT

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