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a variable
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  可变
     METHODS The HPLC system consisted of G1314A variable wavelength uv-visible detector,Hypersil ODS(4.6mm×250mm,5μm),HP chemstation,Hp1100 series quaternary pump and vacuum degasser(G1322A).
     方法采用HP1100高效液相色谱仪(包括G1314A可变波长紫外检测器,HP化学工作站,G1322A真空脱气机,HP1100四元泵),Hypersil ODS柱(4.6mm×250mm,5μm)。
短句来源
     Method The HPLC system consists of G1314A variable wavelength uv-visible detector, Hypersil ODS (4.6 mm×250 mm, 5 μm), HP chemstation, HP1100 Series Quaternary Pump and Vacuum degasser (G1322A).
     方法采用HP1100高效液相色谱仪(包括G1314A可变波长紫外检测器,HP化学工作站,G1322A真空脱气机,HP1100四元泵),HypersilODS色谱柱(4.6mm×250mm,5μm)。
短句来源
     [Method]The HPLC system consists of G1314A variable wavelength un-visible detector,Hypersil ODS(4.6mm×250mm,5μm),HP chemstation, Hp1100 Series Quaternary Pump and Vacuum degasser (G1322A).
     [方法]采用HP1100高效液相色谱仪(包括G1314A可变波长紫外检测器,HP化学工作站,G1322A真空脱气机,HP1100四元泵),Hypersil ODS柱(4.6mm×250mm,5μm)。
短句来源
     A variable reflection electrochromic mirror with PMMA+LiClO 4 ionconductor,Al(40nm) /α WO 3(100nm)/PMMA+LiClO 4(160nm)/NiO(80nm)/ITO/glass,was fabricated. Its average visible reflectances of the colored and bleached states are 0.23 and 0.69 respectively.
     cm。 利用该离子导体薄膜制备的可变反射电致变色镜 ,Al(40 nm) /α- WO3(1 0 0 nm) / PMMA +Li Cl O4(1 60 nm) / Ni O(80 nm) / ITO/ glass,着色态和漂白态可见光平均反射比分别为 0 .2 3和 0 .69。
短句来源
     A variable angle synchronous fluoresceence method has been described for simul- taneous determination of vitamin B_2 and B_6.The measurement is carried out on a labora- tory-constructed spectrofluorimeter with the scan speeds of 120 nm/min and 110.57 nm/min respectively for the excitation and emission monochromators.
     本文提出维生素 B_2和 B_6的可变角同步荧光同时分析法。 激发和发射单色仪扫描述度分别为120nm/min 和110.57nm/min。
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  由变
     Firstly, the Poincaré-Chetaev variables x 1,x 2,…,x n and more with n\|m holonomic constraints and m-l nonlinear nonholonomic constraints of Chetaev type were introduced. Secondly, the equations of Chaplygin's form, Nielsen's form and Appell's form were derived from the D'Alembert\|Lagrange principle for a variable\|mass mechanical system.
     首先 ,由变质量力学系统的D’Ale mbert Lagrange原理导出Chaplygin型方程、Nielsen型方程及Appell型方程 .
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  “a variable”译为未确定词的双语例句
     Theoretical Analysis and Experimental Study of a Variable Speed and Constant Frequency Power System
     变速恒频发电系统的理论分析及实验研究
短句来源
     A Variable Polarization Wide-Band Waveguide Circuit with Compact Structure
     一种结构紧凑的宽带波导型变极化电路
短句来源
     THE ANALYSIS FOR REGULATION PERFORMANCE OF A VARIABLE THRUST ROCKET ENGINE CONTROL SYSTEM
     变推力火箭发动机控制系统调节性能分析
短句来源
     A VARIABLE PARAMETER ANALYSIS AND DESIGN METHOD OF COMPUTER GUIDANCE SYSTEM-THE EXTENDED Z-TRANSFOVM METHOD
     计算机导引系统变参数分析与设计方法——广义z变换法
短句来源
     An Equipment for Cavitation Study --A Variable Pressure Tank
     高速水流空化研究设备——变压箱
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  a variable
A modified upwind difference scheme for nonlinear parabolic equations in a variable domain
      
The nonlinear parabolic equations in a variable domain are considered.
      
The surface composition of the blend films was determined by Fourier transform infra-red spectroscopy coupled with a variable incidence angle attenuated total reflection accessory (ATR-FTIR).
      
Adaptive suboptimal systems with a variable dimension of the vector of adjustable parameters
      
As an adaptive algorithm, the finite-convergent algorithm shows up for the solution of the counting system of recurrent aim inequalities with a variable number of adjustable parameters, which stabilizes only on completion of transient processes.
      
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The absorption wavemeter investigated consists of a single loop with a variable gap which is formed by a pair of parallel plates. A calibration formula for the meter was derived on the assumption that the stray capacity could be considered constant and the stray inductance negligible. This simple and useful formula was ex perimentally checked on four different meters, covering the range from about one-and-quarter meter to one-half meter. These melors were carefully constructed and accurately calibrated...

The absorption wavemeter investigated consists of a single loop with a variable gap which is formed by a pair of parallel plates. A calibration formula for the meter was derived on the assumption that the stray capacity could be considered constant and the stray inductance negligible. This simple and useful formula was ex perimentally checked on four different meters, covering the range from about one-and-quarter meter to one-half meter. These melors were carefully constructed and accurately calibrated with reference to a quartz oscillator by the double-heating method through the use of an auxiliary oscillator of a continuous range of wave-lengths from six to ten meters.

在吸收式波长计之理论上,以其杂储电量为常数而略其杂磁感量,得一简便之公式虽在波长一公尺左右亦可用。所研究之吸收式波长计之构造,系一黄铜制成之单圈,用二黄铜片制成之一缝隙。其缝隙之宽度,可由一螺旋调节。此种波长计,曾 在国立中央研究院物理研究所制造室制造四具,可量波长一有四分之一公尺至半公尺亦曾在此研究所之实验室内,与水晶振荡器校准先制一振荡器,可在六至十公尺之间,发生无论任何波长之振荡。并将此振荡器与一水晶振荡器用拍谐法校准。再制一有四分之一公尺至半公尺之振荡器,与已与水晶校准之振荡器,再用拍谐法校准,而同时以所制之吸收式波长计量之其实验与理论所得之各结果极为符合。

This paper investigates an important problem in the design of dams, which had not been well studied yet in past decades; i.e., the problem of pore pressures and uplift forces in dams under unstable head or tail water level. According to the results of the preliminary analysis presented in this paper, it has been indicated that the nature of this problem is similar to that of the problem of un steady flow of heat, only that the coefficient of diffussion is a variable both in time and in space. Some simple...

This paper investigates an important problem in the design of dams, which had not been well studied yet in past decades; i.e., the problem of pore pressures and uplift forces in dams under unstable head or tail water level. According to the results of the preliminary analysis presented in this paper, it has been indicated that the nature of this problem is similar to that of the problem of un steady flow of heat, only that the coefficient of diffussion is a variable both in time and in space. Some simple and basic cases are analyzed approximately based on this similarity and some important conclusions are recomended. According to these conclusions the usual gravity dams can be designed more reasonably and economically.

本文提出了一个在堤坝设计中重要的而过去尚未阐明的问题,即当坝体上下游水位变化时,对坝内扬压力的影响的问题。根据初步的分析,这个问题的性质和不稳定的热传导问题极为相似,只是“扩散系数”是一个变数而非定值,从这一相似性出发,本文对若干重要情况进行了近似分析,提出了一些结论,采用这些结论,常可使重力坝的断面设计得更为合理和经济。

Starting from the frequently adopted formula h=△_i/(10~((I_0-I_i)/S)—1)~(1、2),where h is the focal depth, Ai is the mean radius of the ith isoseismal, I_0 is the epicentral intensity and s is a parameter and taking the common logarithm, we have log h=log△_i—1/2log (10~(I_0-I_i)/S)—1),A graticule can be constructed on the basis of this formula with s as a variable parameter. By use of this graticule, the values of s and h for 19 Chinese earthquakes were determined and it was found that the s-values for...

Starting from the frequently adopted formula h=△_i/(10~((I_0-I_i)/S)—1)~(1、2),where h is the focal depth, Ai is the mean radius of the ith isoseismal, I_0 is the epicentral intensity and s is a parameter and taking the common logarithm, we have log h=log△_i—1/2log (10~(I_0-I_i)/S)—1),A graticule can be constructed on the basis of this formula with s as a variable parameter. By use of this graticule, the values of s and h for 19 Chinese earthquakes were determined and it was found that the s-values for Eastern China are lower than those for Western China. According to the material for 61 earthquakes, it was found that the value of s increases with the focal depth; however, its relation with the low-velocity layer is not evident.

根据常用公式 h=Δ_i/10~((I_0-I_i)/s)-1~(1/2), 式中h为震源深度,Δ_i为烈度为I_i的等震綫半径,I_0为震中烈度,S为一系数;取(1)式的对数得 logh=logΔ_i-1/2log[10~((I_0-I_i)/s)-1], 按(2)式可以作成一量版,以同时測定h和s。利用这个量版測定了19个中国地震的s和h,結合文献[4]的資料,指出中国东部的s系数比西部的偏低;且当深度加大时,s系数加大。采用文献[1,5]的資料測定了61个地震的s系数,結果表明s的数值随深度的增加而加大,占与低速层的关系并不明显。

 
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