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accuracy high     
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  精度高
     Microcomputer controlled arc welding inverter power source can raises greatly controlled level of pulse MIG welding for its flexible control, high accuracy, high system response.
     采用微机控制的弧焊逆变电源控制灵活、精度高、系统响应高的特点,能够极大提高脉冲MIG焊的控制水平。
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     In contrast to traditional macro-plastic machining, not only are machining objects small and machining accuracy high, but also are there many dimension effects in machining process.
     与传统的宏观塑性加工不同,微细塑性成形不但加工对象尺寸小,要求精度高,而且在加工过程中材料所表现出来的性质与宏观加工相比也有许多不同之处,尺度效应将会发生。
短句来源
     The result of experiment showed that this system has the advantages of high accuracy,high checking and measuring efficiency and low manufacturing cost.
     实验结果表明,系统具有精度高、检测效率高、制造成本低的优点。
短句来源
     The analysis of technical economy shows that this method is of high accuracy,high speed,and good practical effect.
     技术经济分析表明,其测量精度高,速度快,实践效果良好。
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     Compared with the traditional positioning system, this system is characterized with such qualities as low cost, high positioning accuracy, high positioning speed and low telecommunication cost.
     同传统的定位系统相比 ,该方案具有系统成本低、定位精度高、定位速度快、通信费用低等特点
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  准确性高
     The application proved that this new method has the advantages of high accuracy, high efficiency and wide applicability.
     该方法在大港油田、胜利油田、塔河油田的实际应用中取得了较好的效果 ,具有准确性高、效率高、应用范围广的特点。
短句来源
     Finally the parallel code is applied to simulation of viscous flow around the DLR-F6 geometry(wing-body-pylon-nacelle) to validate its accuracy, high parallel performance and the ability to deal with complex geometries.
     最后,通过对绕DLR F6外形(翼身组合体+挂架+发动机短舱)黏性流动的数值模拟,验证了该并行程序的准确性,高性能并行计算以及处理复杂几何外形的能力。
短句来源
     Conclusion The super a diagnosis tubercle localization chest accumulates the liquid in image check the better than other image checks,internal a form,beehive form and box off the echo clearer,the pluera is fatty and thick and glue to connect the degree apts to observe,the sufferer has no pain and sufferings and examines a patient the accuracy high.
     结论:超声诊断结核性局限性胸腔积液在影像检查中优于其他影像检查,内部条索状、蜂窝状及分隔回声较清晰,胸膜肥厚及粘连程度易于观察,患者无痛苦且诊断准确性高
短句来源
     Conclusion Capillary RSCA is useful in HLA typing with high accuracy, high resolution, high throughput, but low cost. It is desirable to be applied in HLA assignment for transplantation and diseases related research.
     结论 毛细管参考链介导的构象分析法具有准确性高、分辨率高的优势,与测序法相比具有成本低、高通量的特点,值得在移植、相关疾病等领域的HLA分型中推广应用。
短句来源
     (2)decision level fusion based on Dempster -Shafer evidence theory processes asynchronously data acquired through heterogeneous sensors, achieves good accuracy, high reliability and more specific inferences than could be achieved by use of a single sensor alone. But decision level fusion has lower accuracy and higher data preprocessing cost than feature level fusion.
     基于Dempster—Shafer证据推理的决策层信息融合,可对异质传感器信息进行非同步处理,对发动机故障分类准确性高、可靠性强,但融合精度不及特征层融合方法,预处理代价高。
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  准确度高
     MALDI-TOF-MS method is more time-consuming, but it has characteristic of high accuracy, high stability, and high-throughput.
     MALDI-TOF-MS分型方法虽然步骤较多,但准确度高,反应体系稳定并具有高通量潜力。
短句来源
     Under the best condition,the limit of detection of Arsenic and Stibiumare less than 0.03μg/g. Experiments shows that the method has high accuracy,high determination speed,ease of operation,high sensitivity and less interferences.
     在最佳条件下砷、锑的检测限均小于0.03μg/g,实验证明此方法准确度高,分析速度快,操作简单,灵敏度高,干扰少。
短句来源
     Thus it can be seen , the method has characters of analytical accuracy ,high precision, simple operation, short analytical time as well transplant ability and so on, and the result of qualitative analysis and quantitative analysis provide a scientific basis for making an evaluation on the catalyst of aromatization.
     该方法具有分析准确度高、精确度好、分析时间短、操作简单及移植性强等特点,通过定性和定量分析,为评价芳构化催化剂提供依据。
短句来源
     Because of the attractive features of quartz crystal temperature sensors as there are high sensitivity and accuracy, high dynamic range, interchangeability without recalibration, high stability, and microprocessor suiting frequency output, there have been already several attempts to develop respective measurement devices in micro sensor filed.
     而石英晶体温度传感器由于具有灵敏度高、准确度高、长期稳定性好、动态范围高、互换性好和与微处理器兼容的频率输出信号,因此已经成为微传感器领域重要的研究对象。
短句来源
     As the result of practical measurement,this flowmeter has the characteristics of high accuracy,high reliability,simple structure and intelligence etc.
     实际测量表明:该流量计具有准确度高、可靠性高、结构简单、智能化等特点。
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  高准确度
     In the DO-13Type Digital Valtmeter,which is one of high accuracy,high sensitivity andlarge digital number,this method is utilized successfully with the result of3.5ppm whole device error and 3μV conversion sensitivity,which are at theworld level at the beginning of the eightys of the twentyth century.
     在DO—13型高准确度、高灵敏度和高位数数字电压表研制中,利用这种方法实现了整机误差3.5ppm,转换灵敏度3μV,达到八十年代初期国际水平。
短句来源
     For its high sensitivity, accuracy, high speed and easy to be automated, bio mass spectrometry develops very fast.
     生物质谱因其高灵敏度、高准确度、快速、易于自动化等特点 ,在生命科学领域的应用和研究日益广泛。
短句来源
     The characteristics of this method are high accuracy, high speed, continuous measurement and low cost.
     此方法的特点是:高准确度、高速度、低成本、并可连续测量。
短句来源
     With its high sensitivity, accuracy, high speed and easy automation, Bio - Mass Spectrometry is popularly used in nucleic acid chemistry, proteomics, saccharide biology and cell information transferring.
     生物质谱因其高灵敏度、高准确度、快速、易于自动化等特点,使其在核酸化学、蛋白质组学、糖生物学、细胞信号转导等生命科学领域得到了广泛应用.
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      accuracy high
    This paper focuses on designing sparse matrices for the propagator while keeping the accuracy high at the cost of ignoring critical-angle phenomena.
          
    The trial results for the salt model show that the numerical dispersion is decreased to a minimum extent, the accuracy high and diffracted waves abundant.
          
    High-accuracy high-reliability pinpoint technologies are needed for identifying and controlling vehicles.
          


    Investigations have been made on the characteristics of the oscilloscopic polar-graphy of uranium(Ⅵ) in solutions of acetonitrile, acetone, methyl alcohol, ethyl alcohol or tetrahydrofurane with nitric acid as the supporting electrolyte. The influence of organic solvents and crown eth.ers on the properties of the oscilloscopic polargraphy of uranium was discussed. Uranium(Ⅵ) shows an excellent reversibly reductive wave in the medium composed of actonnitrile and nitric acid. Acetone, methyl alcohol or ethyl alcohol...

    Investigations have been made on the characteristics of the oscilloscopic polar-graphy of uranium(Ⅵ) in solutions of acetonitrile, acetone, methyl alcohol, ethyl alcohol or tetrahydrofurane with nitric acid as the supporting electrolyte. The influence of organic solvents and crown eth.ers on the properties of the oscilloscopic polargraphy of uranium was discussed. Uranium(Ⅵ) shows an excellent reversibly reductive wave in the medium composed of actonnitrile and nitric acid. Acetone, methyl alcohol or ethyl alcohol may be employed in place of acetonnitrile. The determination of uranium in nonaqueous solutions by the oscilloscopic polargraphic method is, therefore, of wide prospect of applicability.In the present work, the oscilloscopic polargraphic method for analysis of uranium in uranylcrown ether complex compounds has been established. In this method a sample is first dissolved in acetonitrile, an equal volume of 4N nitric acid is then added and the reductive current of uranium (Ⅵ) measured in a straightforward way. The method is characterized by its simplicity and rapidity. Determination of a couple of samples can be accomplished in 20 minutes, with an accuracy higher than 2%.

    本文研究了在乙腈、丙酮、甲醇、乙醇和四氢呋喃等有机溶剂中,以硝酸作支持电解质时铀(Ⅵ)的示波极谱性能。铀(Ⅵ)在乙腈、丙酮、甲醇或乙醇的硝酸介质中都有一个很好的可逆还原波。 本文建立了冠醚铀酰络合物中铀的示波极谱分析法。此法用乙腈溶解试样,然后加入等量的4 N硝酸,直接测量铀(Ⅵ)的还原电流。方法简便,快速,能在二十分钟内完成双样测定。精密度好于2%。

    A new method,using the differential channel and developed for correcting the errors caused by the matrix effect in radioisotope x-ray fluorescent analysis,is described.This method,rather simple and efficient,proved suitable especially for the simple on-stream analysis. Its principle is based on that the characteristic x-ray spectrum distribution of any element does not vary with its content.When the measurement conditions keep definite,there exists an inherent linear relationship between the pulse counts measured...

    A new method,using the differential channel and developed for correcting the errors caused by the matrix effect in radioisotope x-ray fluorescent analysis,is described.This method,rather simple and efficient,proved suitable especially for the simple on-stream analysis. Its principle is based on that the characteristic x-ray spectrum distribution of any element does not vary with its content.When the measurement conditions keep definite,there exists an inherent linear relationship between the pulse counts measured in different channels within the spectrum and the element content,i.e. the element content being changed,the ratio of the varying pulse counts from dif- ferent channels will be constant.In this case,for the overlapped spectrum peak of neighboring elements,the ratio,k,of the pulse counts produced by an interfer- ence element in the measured element channel to those produced by the same ele- ment in a narrow bond channel(called differential channel)far from the element spectrum measured can be determined in advance with a known sample,and used as a correction coefficient.Therefore,both the correction coefficient k and the pulse counts in the differential channel can be used to calculate the pulse counts of in- terference elements in the channel measured,and the measurements can be corrected. In addition to describing the principle,the method for calculating the correc- tion coefficient is experimentally demonstrated and illustrated by figures and tables, and the results of correction for both artificial and natural samples are also given. 94 samples containing copper and iron were measured for copper content,and the errors before and after correction were compared with the chemical analysis. The results are as follows.The number of samples measured with absolute accu- racy less than 0.2%(element content)increased from 45.8% to 71.3% of total,while that measured with accuracy higher than 0.55% decreased from 17% to 8.5% conse- quently.It has been shown that this method can basically satisfy the requirements for process control. Finally,some attempts to use this method in the circuit of on-stream analyser are also introdued.

    微分道校正法是对放射性同位素 x 荧光分析中基体效应误差的一种新校正法。它简单而有效,特别适用于简单的流程分析。该校正法的原理是:任何元素的特征 x 线能谱分布规律不随其含量而变,当测量条件一定时,该能谱的各测量道内的计数与其含量各呈固有的线性关系。即当含量变化时,不同道内的计数变化比值是一定的。根据这个原理,对于相邻元素的重叠谱峰,可以事先用已知样品求得干扰元素在待测元素测量道内的计数和在远离待测元素谱的另一窄道(我们称之为微分道)内的计数变化比 K,作为校正系数。根据此校正系数和微分道的计数,算得测定某元素时干扰元素在测量道内的干扰计数,使测量值得到校正。文中除对原理的阐述外,还通过实验,以图表等形式,示范了校正系数的求法及对人工配制样品和实际矿样的校正效果。以化学分析值为准,测铜与铁混合样中的铜。对94个样品的实测结果,校正前后分析误差的对比是:品位绝对误差≤0.2%的矿样,由原占总数的45.8%上升为71.3%,误差>0.5%的矿样,由原来占17%下降为8.5%,基本可满足生产过程控制的要求。文中还介绍了此法在流程分析仪电路方案上的应用。

    A new type high accuracy high voltage D.C. power supply used for electron beam exposure sysfem is described. It is of unsaturated inverter, intermediate insulator and directly regulated type. Reference source and sample resistance are all thermostatic. Its main technical data, sach as those related to ripple, drift, stability and regulation sensitivity all reach 10~(-5) level. This system has been working with good results over half a year.

    本文介绍一种电子束曝光机用新型精密高压电源。采用非饱和逆变、中间膈离、直接调正方式。基准源及采样电阻均采用恒温措施。纹波、漂移、稳定度、调正率等主要技术指标均达到1×10~(-5)量级。实际工作考核半年多,效果良好。

     
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