the development of automatic primary standard for vickers hardness

1、

preliminary study on measurement uncertainty of vickers hardness test

维氏硬度检测中不确定度初探

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2、

prediction of ceramics vickers hardness based on bp neural network

基于反向神经网络的陶瓷材料Vickers硬度预测

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3、

vickers hardness measurement by using digital image wavelet multi-resolution analysis

应用数字图像小波多分辨率理论测试维氏硬度

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4、

measurement and analysis on vickers hardness of engineering ceramic materials

工程陶瓷材料维氏硬度测定及分析

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5、

test method for vickers hardness of high performance ceramics

GB/T16534-1996工程陶瓷维氏硬度试验方法

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6、

the development of api oil country tubular goods thread and lubricant of thread

API石油专用管材螺纹和螺纹脂的发展

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7、

glossary of oil field drilling and production equipment and oil country tubular goods terminology

石油钻采设备及专用管材词汇

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8、

earlier this month, commerce announced preliminary anti-dumping duties on the same 'oil country tubular goods. '

本月早些时候，美国商务部宣布了有关对石油工业用管材征收反倾销关税的初步裁决。

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9、

on september 9, the u. s. department of commerce decided to levy a tariff on chinese oil country tubular goods.

9月9日，美国商务部决定对原产于中国石油管材国家关税。

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10、

based on the previous achievements in arc modeling, this paper describes an ideal long arc volt-ampere characteristic and its equivalent circuit and presents a new method for locating arcing faults on hv long transmission lines with single-terminal voltage and current signals.

文中借鉴其他学者对电弧的研究成果，建立了电弧的理想电压&电流转移特性曲线和对应的电弧等效模型，提出了一种耦合双回高压输电线路故障测距单端信息时域的新方法。

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11、

this paper illustrates the power-transferring diagram of any element in the t-type nonlinear resistance network, using the volt-ampere characteristic of nonlinear resistance.

本文论述了利用非线性电阻的伏安特性，作出T型非线性电阻网络中任一元件的功率转移图的图解法。

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12、

in order to obtain volt ampere characteristic and related parameters of zno nonlinear varistor, the method by which the charged capacitor release energy to zno elements is applied, the element ′ s current and voltage are sampled and processed rapidly by microcomputer.

为得到阀片的伏安特性曲线和有关特征参数，用储能电容方式对ZnO阀片进行放电，应用微机技术对放电电压、电流进行快速采样处理。

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13、

warming yang for relaxing bowels

温阳通便

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14、

researching into voltage sag and its transfer in the network

电网中的电压凹陷及其传递的探讨

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15、

discussion on voltage sag of electrical network and solving schemes

电网电压凹陷及其解决方案探讨

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16、

voltage sag generator for wind power generation system

一种用于风力发电的电压跌落发生器

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17、

research on mitigation methods of voltage sag with phase-angle jump

考虑相位跳变的电压凹陷动态补偿控制器研究

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18、

an improved method to detect voltage sag characteristics

一种改进的电压凹陷特征量检测方法

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19、

assessment of voltage sag frequency influenced by uncertain influential factors of power system

受系统不确定因素影响的电压暂降频次评估

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20、

a new method for estimating the severity of voltage sag based on process performance index

基于过程性能指数的电压暂降严重程度评估新方法

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