二: two变量: variable; variable quantity; ...指数: index number; index密度: density; thickness函数: function指数密度函数: exponential density function指数概率密度函数: exponential probability density function指数密度: exponential density类密度函数: class density function密度函数: de ity function; de ityfunction; depotition function; dichtefunktion density function; frequency function密度函数矩: moment of density function谱密度函数: spectral density function指数密度梯度: exponential density gradient二变量函数发生器: bivar bivariate function generator密度函数 概率密度函数: densityfunction边际密度函数: marginal density function边缘密度函数: marginal density function泊松密度函数: poisson density functions二项密度函数: binomial density functions二元密度函数: bivariate density function概率密度函数: frequency function; function of density of probability; probability density function (pdf); probability function; probability-density functon; probabilityde ityfunction故障密度函数: failure de ity function; failure density function恒星密度函数: stellar density function后验密度函数: posterior density function互谱密度函数: cross spectral density function
