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基体校正
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  matrix correction
     A Method of Matrix Correction in The Determination of Trace Elements for Rocks by X-Ray Spectrometry
     X荧光测定岩石中痕量元素的基体校正方法
短句来源
     This article introduced an X-ray fluorescence spectrometry method using K_2SO_4+Na_2SO_4 as carrier to detect chlorine,bromine and iodine in bittern. Selections of carrier,the analytic condition of element as well as matrix correction were also included.
     叙述了用K2SO4+Na2SO4作载体,X射线荧光光谱法测定东营地区卤水中氯、溴、碘的方法,并对载体的选择、元素分析条件及基体校正等作了探讨。
短句来源
     All analyte contents were calculated directly from the calibration curves without any matrix correction.
     用本文改进的少量粉末样品制备法压片,各组分含量由校正曲线直接求取而不需基体校正
短句来源
     Theory of matrix correction is developed.
     发展了基体校正理论。
短句来源
     DETERMINATION OF TRACE ELEMENTS Rb, Sr AND Zr IN GEOLOGICAL ROCK SAMPLES BY XRF SPECTROMETRY——Application of The Twice Matrix Correction And The Two-Step Background Correction
     X射线荧光光谱测定地质岩石样品中的痕量元素铷,锶和锆——二次基体校正法和两步背景校正法的应用
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  “基体校正”译为未确定词的双语例句
     The matrix effect was corrected by the scattered target-line ratio method for As, Ga, Co, Ni, Br and by the empirical influence coefficients for Cl, S, F.
     对As,Ga,Co,Ni和Br元素,用散射内标法校正基体效应,而对Cl,S和F元素则用经验系数法进行基体校正
短句来源
     Modified Calculation of RIGAKU Theoretical Matrix Coefficients and Application in X-Ray Fluorescence Analysis for Samples of Building Materials,Nonmetallic Minerals and Geology
     RIGAKU理论基体校正系数的修正计算及其在建材非金属矿产地质样品X-射线荧光光谱分析中的应用
短句来源
     By pressing the magnesia powder into disks directly and correcting the matrix effect, a method for X-ray fluorescence analysis of magnesia was established.
     采用粉末样品直接压片法 ,通过基体校正等手段 ,建立了优质镁砂X射线荧光分析方法。
短句来源
     The TiO2, TFe, Al2O3, SiO2, MnO in ilmenite have been measured by XRFA using pelletized powder samples. After separating the calibration curve into two sections or correcting the matrix effects,areasonable accuracy has been obtained.
     采用粉末压制的样片进行X射线荧光分析,测定钛铁矿中的TiO2、TFe、Al2O3、SiO2和MnO,标准曲线经分段处理或基体校正后达到良好的准确度。
短句来源
     The samples of mould powder are made by the smelting method. The contents of CaO、SiO2、TFe、MgO、Al2O3 and MnO in powder are analyzed quantitatively by the fluorescence spectrometer of Xray,operation curves are established for every composition and matrix calibration regression calculation are done for the six compositions. Establishment and application of this method can lower labour intensity of chemical analysis and increase the analysis velocity and working efficiency.
     保护渣采用熔融法制样,用X射线荧光光谱仪对保护渣中CaO、SiO2、TFe、MgO、Al2O3、MnO进行定量分析,建立每个成分的工作曲线,并对6个成分进行基体校正回归计算,此方法的建立与应用可减轻用化学法分析的劳动强度,提高分析速度和工作效率。
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  相似匹配句对
     Theory of matrix correction is developed.
     发展了基体校正理论。
短句来源
     A METHOD OF MATRIX CORRECTION
     一种校正基体效应的方法
短句来源
     CORRECTION OF NONUNIFORMITY OF CCD
     CCD不均匀性校正
短句来源
     Function of the S Correction Capacitor
     S校正电容的作用
短句来源
     The substrate is K3 Ni-base superalloy.
     基体为K3合金。
短句来源
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  matrix correction
Matrix correction of a dual pair of improper linear programming problems
      
Matrix correction of a dual pair of improper linear programming problems with a block structure
      
Minimax matrix correction of inconsistent systems of linear algebraic equations with block matrices of coefficients
      
All problems of matrix correction are illustrated by numerical examples.
      
One should in principle introduce a density matrix correction which characterizes each pair of states.
      
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The cffects of matrix elements such as Iron, Calcium and Magnesium etc.On measuring trace rare earths have been investigated by using ICP-AES method in different powers. The results show that the effect of matrix elements is reducedwith the increase of power. The suitable values are selected to be 0.75A for anode current measured height is 15mm above the coil and flow rate of carrier gas is 0.8l/mim. Under this condition we worked out ICP-AES method of non matrix elements calibration curve to measure the trace...

The cffects of matrix elements such as Iron, Calcium and Magnesium etc.On measuring trace rare earths have been investigated by using ICP-AES method in different powers. The results show that the effect of matrix elements is reducedwith the increase of power. The suitable values are selected to be 0.75A for anode current measured height is 15mm above the coil and flow rate of carrier gas is 0.8l/mim. Under this condition we worked out ICP-AES method of non matrix elements calibration curve to measure the trace rare earths in ore. This method is fast and convenient and the measured results are accurate.

本文研究了不同功率下基体铁、钙、镁等对ICP-AES测定微量稀土的影响,证明了基体效应随功率提高而减弱。选用了适宜的阳流为0.75A。测量高度为15毫米(线圈上方)、载气流量为0.8升/分,拟定了无基体校正曲线ICP—AES测定矿石中微量稀土元素的方法。测定简便、快速,结果准确。

On the basis of more precise experimental law of beta absorption, the calculation formula for plating thickness measurement by beta backscattering is deduced theoretically in this paper, the validity and universality of this formula are verified experimentally.In addition, according to the analysis of experimental data and the parameters of the formula, the measuring range of common used beta isotopes is given and the principle of base correction technique has also been introduced.

本文以β吸收实验规律为基础,推导了β测厚的计算公式,与实验值比较,结果令人满意。本文还根据对实验数据及公式参数的分析,得出了常用β源的测厚范围,介绍了基体校正的基本原理。

The powder sample was diluted and pressed into a disk,and the 15rare earth elemenls were then determined by PHILIPS PW1400 spectro-meter. The interfering factors were determined for the lines which areseriously interfered by other lines, and the interfered parts were deduc-ted by the determined factors by computer. The complex matric effectswere corrected by α-coefficients, and the results were satisfactory. Themain points investigatied in this work are: selecting of optimum in-strument parameters; correcting...

The powder sample was diluted and pressed into a disk,and the 15rare earth elemenls were then determined by PHILIPS PW1400 spectro-meter. The interfering factors were determined for the lines which areseriously interfered by other lines, and the interfered parts were deduc-ted by the determined factors by computer. The complex matric effectswere corrected by α-coefficients, and the results were satisfactory. Themain points investigatied in this work are: selecting of optimum in-strument parameters; correcting of background, detemining of interferingfactors: and comparing of the results which were obtained by threemathematic models. This method is accurate, 3 times faster than the pre-vious method, and has a wide analysis range. The precision of themethod is better than 5% when rare earth content is less than 2%, andbetter than 2% when rare earth content is more than 2%

采用粉末稀释直接压片,在PW1400顺序式X-荧光光谱仪上测定了 15个稀土元素。通过电子计算机采用干扰系数扣除严重的谱线干扰,应用α系数校正复杂的基体效应,取得满意的结果。本文研究重点是选择了最佳仪器测量条件;测量出元素间的干扰系数及校正了背景影响;比较了三种基体校正数学模型的效果。分析精度:当含量小于2%时,优于 5%;含量大于2%时,优于?2%。分析速度较文献[5]提高三倍。

 
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