英汉词典 专业、权威的英语单词查询平台

difference difference absorption spectrum difference account difference address operand difference algebra difference amplifier difference analogue difference apparatus difference approach difference approximation difference beam difference between acquaintance and knowing difference between both ends difference between commercial purchasing and price difference between cost and book value difference between CW and CCW speeds difference between downhole flowing pressure and s difference between hydrostatic end forces difference between industry and agriculture difference between log's readings difference between means difference between mental and manual labor difference between named common and blank common difference between proportions difference between reservoir pressure and injectio difference between reservoir pressure and saturati difference between town and country difference between workers and peasants difference channel difference channel threshold coefficients Difference check difference cochain difference coefficient difference cokernel difference control chart difference correction difference correction method difference correlation difference counter difference crank spread difference current difference curve difference detection difference detector difference determinant difference differential equation difference diode difference encoding difference engine difference equation difference equation model difference estimate difference estimation difference estimator difference event difference expression difference expressions difference factorization method difference feminism difference formula difference Fourier method difference Fourier synthesis difference frequency difference frequency distortion difference frequency effect difference frequency fluctuation difference frequency sweep difference frequency term difference from difference function difference galvanometer difference gate difference gauge difference group difference image difference in difference in colo(u)r difference in depth modulation difference in depth of modulation difference in depth of modulation (ddm) difference in elevation difference in elevation or drop difference in exchange rate difference in floor lever of sieve tray difference in GPS difference in groups difference in height difference in isolation difference in kind difference in level between the trestles difference in opinion difference in optical path difference in phase difference in price difference in riser level difference in subjective activity difference in temerature difference in temperature difference in the trend of evolution difference in time difference interpolation difference ionization chamber difference judgement difference length operand difference light difference limen difference limen difference test difference limen test difference limens difference linear ratemeter difference list difference logic difference logical difference mapping difference matrix difference measurement difference measuring assembly difference method difference methods difference mode gain difference modes difference module difference Monte Carlo method difference number difference of a function difference of ability difference of absolute costs difference of altitude difference of arcing time difference of brightness difference of classes difference of comparative costs difference of cubes difference of depth of modulation difference of electric potential difference of elevation difference of elevation between inside and outside difference of events difference of first order difference of focus difference of frequency difference of fundamental frequences difference of handling rates difference of height difference of higher order difference of latitude difference of level difference of longitude difference of luminance difference of magnetic potential difference of magnification difference of meridianal parts difference of meridional parts difference of n-th order difference of nth order difference of observation difference of opinion difference of parallax difference of phase difference of phase angle difference of polynomial difference of potential difference of potentials difference of reading difference of sample means difference of sets difference of sideslip angles difference of squares difference of temperature difference of threshold difference of tide difference of time difference of two squares difference operator difference phase angle difference potential difference potentiometer difference preference difference pressure flow meter difference product difference pulse difference quantity difference quotient difference quotients difference register difference report difference resonance difference ring difference scale difference scaler difference scheme difference score difference sensitivity difference sequence difference sequent difference set difference set algebra difference set code difference sign test difference signal difference space difference species difference spectra difference spectrophotometer difference spectrum difference spiral difference stationary difference strategy difference stream difference string difference structure difference synthesis difference table difference temperature difference test difference threshold difference thresholds difference tone difference tones difference transfer ratio difference triangle difference type pickup electrode difference value difference vegetation index (dvi) difference viewer difference voltmeter difference, frequency difference, phase difference, temperature difference, vector difference-between-mean test difference-differential equation difference-differentialequation difference-frequence relay difference-frequency distortion difference-in difference-in-depth modulation difference-maker difference-makers difference-of-means difference-of-squares difference-operator table difference-product difference-set code differencea differenced differenced measurement differences differences among means differences between means differences in color differences in opinion differences in protein composition differences in regional price levels differences in vegetative growth differences of co-ordinates differences of opinion differences side-by-side