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精密标准
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  precise standard
     It is necessary to set up a control net with extra accuracy around the industrial objects. In this paper the theory and practice for setting up this kind of control net are presented while the length accuracy of precise standard rule and angle accuracy of precise theodolite are simultaneously used.
     提出一种同时利用精密标准尺的长度精度和精密经纬仪的角度精度的方法,阐明建立此等控制网的理论与实际操作要点。
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  “精密标准”译为未确定词的双语例句
     Three major multi-channel A/D conversion circuits, i. e. a high speedsample/hold, a serial comparator, a precision reference, designed withpopular IC op. amp. are described.
     本文介绍的高速采样保持器、串联比较器和精密标准电源,是A/D转换中的三个主要电路,采用普通的集成运算放大器设计而成。
短句来源
     This paper describes the method for the preparation and purification of materials used in construction of high precision saturated cadmium sulfate standard cells from general technical grade chemicals.
     本文提出从工业品原料提纯制备高精密标准电池的方法。
短句来源
  相似匹配句对
     A Precise (Transfer-Standard) Pyrometer
     精密(标准)光电高温计(英文)
短句来源
     Standard
     标准
短句来源
     Standard for Edge Quality of Precision Part
     精密零件棱边质量的标准
短句来源
     Standard Architecture
     “标准营造”
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     Pushing for Precision
     力求精密
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  precise standard
The aim of this study was to identify groups of patients with differing risks for metastases in order to select more precise standard staging procedures.
      
The method is rapid, sensitive (determination limit 0.0005 μg/mL) precise (standard error >amp;lt; 2%), and accurate (recovery of diacetyl 91.5% + 1.5%).
      
We know that a clear, precise standard is key to interoperability.
      
  precision standard
A sequential sampling procedure was developed to estimate the number of adult coccinellids per m2 with constant average statistical precision (standard error/mean).
      
In 5 subjects, each studied twice while on constant self-selected diets, calcium retention was measured by the WBC method with a precision (standard deviation) of±2.6% of the administered dose or±13.9% of the mean retained fraction.
      
Video frame averaging of 1 to 49 frames had no effect on measures of accuracy (mean differences) but precision (standard deviation of mean differences) was improved from 0.23 to 0.17 mm (p>amp;lt;0.05) with video averaging of ≥25 frames.
      
When the measurements from two contrast injections into a native coronary artery during the same angiographic session were compared, precision (standard deviation of the differences) was 0.198 mm for ADS, 0.192 mm for MLD, and 7.37% for PDS.
      
Acceptable precision (standard deviation of 10-15%) is possible with solid51Cr(VI) samples containing 10 ppm of51Cr as51Cr(III).
      
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Three major multi-channel A/D conversion circuits, i. e. a high speedsample/hold, a serial comparator, a precision reference, designed withpopular IC op. amp. are described. The approach improving circuitdesign is discussed. Characteristic features of the design include an input IC op. amp.follower with power expanding circuit, a temperature-stable MOSFEThold follower, a serial double-comparators circuit, and a regulativemultilevel voltage-stable reference. Performance characteristics include:1.3μs acquisition...

Three major multi-channel A/D conversion circuits, i. e. a high speedsample/hold, a serial comparator, a precision reference, designed withpopular IC op. amp. are described. The approach improving circuitdesign is discussed. Characteristic features of the design include an input IC op. amp.follower with power expanding circuit, a temperature-stable MOSFEThold follower, a serial double-comparators circuit, and a regulativemultilevel voltage-stable reference. Performance characteristics include:1.3μs acquisition time with a 1000pf hold capacitor, 3mv resolution, and0.06% regulation to 30ma load.

本文介绍的高速采样保持器、串联比较器和精密标准电源,是A/D转换中的三个主要电路,采用普通的集成运算放大器设计而成。其特点是使用带功率扩展的电压跟随器、温度稳定的MOSFET保持跟随器、串联的双比较器、以及多级稳压调整的标准电源。

This paper describes the method for the preparation and purification of materials used in construction of high precision saturated cadmium sulfate standard cells from general technical grade chemicals. Forty acid cells (0.049 N H2SO4) were studied, readings of emf were taken at intervals during the period of 1973 to 1979, the average change in emf is 0.33μV per year.Various factors are briefly discussed in the article. The following processes will take place during the aging period of the cells: the dissolution...

This paper describes the method for the preparation and purification of materials used in construction of high precision saturated cadmium sulfate standard cells from general technical grade chemicals. Forty acid cells (0.049 N H2SO4) were studied, readings of emf were taken at intervals during the period of 1973 to 1979, the average change in emf is 0.33μV per year.Various factors are briefly discussed in the article. The following processes will take place during the aging period of the cells: the dissolution of alkali constituents from the inner surface of the glass container into the cells and the slight reaction of cadmium in the negative electrode with the acid in the solution, both these two processes will cause the increase of the emf. While another process, the gradual growth of the crystal sizes of the mercurous sulfate, will decrease the emf of the cells. Experimental data are given for these two factors.

本文提出从工业品原料提纯制备高精密标准电池的方法。有40个酸性电池(硫酸浓度0.0490N),在1973~1979年间,于规定时间测定电动势值,每年平均上升0.33μV. 初步分析了影响电池电动势值稳定性的各种因素,提出了实验数据。

A new precise (standard)multiwavelength pyrometer with a composite prism instead of interference filters is introduced.It can be concluded from the calibration and experimental results that the pyrometer has many advantages such as high signal-to-noise ratio,high stability of the system,great versatility of wavelength selected,great simplicity of construction as well as convenient operation and so on.

介绍一种棱镜分光式、无干涉滤光片的多波长精密(标准)硅光电高温计。实验表明,此仪器信噪比高、稳定性好、波长选择性好,且结构紧凑、操作方便

 
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