1、

Experiment results showed that the system possesses advantages of real-time standard , higher reliability and precision.

实验结果表明该系统可靠性比较高,数据传输的 实时 性和准确性较好.

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2、

PAN standard sample with broad distribution has been adopted to simulate to work out equation of GPC revised curve of PAN by means of designed program in computer, and repeated the results of precision test can reach the limit of the error.

采用宽分布的聚丙烯腈共聚物(Polyacrylonitrile简称PAN)标准样品,通过编制的计算机程序,模拟计算出PAN的GPC校正曲线方程,对宽分布的标准样品进行重复测定,重现性试验结果符合误差要求。

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3、

Build mathematical model of quantitative analysis, confirm the expectation value of light intensity, build standard work curve, improving analysis precision.

建立定量分析数学模型,确定光强值,建立标准工作曲线,提高分析精度。

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4、

It is proved by theory and test that the precision of dry resistor means can meet the request of locomotives constant power load test and reach the standard of water-resistor, therefore, it can serve the application of the dry resistor-load test system. 3.

理论和试验证明其调节精度满足机车恒功率负载试验要求,达到水阻调节精度,为干阻负载方式的推广使用奠定坚实的基础。

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5、

Recoveries of the standard sample ranged from 99.5 ± 0.75% to 93.8 ± 1.3%, method precision was 0.0479, standard deviation was 1.2%, test scope ranged from 0.2 to 1.8 mg/ ml.

本文首次利用双缩脲法建立了快速测定奶粉中肽含量的方法,标样回收率99.5±0.75%~93.8±1.3%,精密度0.0479,标准偏差1.2%,适用范围0.2~1.8mg/ml。

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6、

A Portable Precision Enclosure with High Temperature Homogeneity for the Standard Resistor The accuracy is compared with standard resistor.

电阻传递标准用可携式高精度空气控温箱比较各测试仪采用不同测量法现场测得的接地电阻值。

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