一: one阶: steps; stairs差别: difference; disparity; dissi ...图: picture; chart; drawing; map二阶差别图: second-order difference picture一阶差分: first difference; first order difference一阶差分法: first difference method; method of first differences差别图象: difference image一阶差分方程: first order difference equation; first-order difference equation一阶差分数列: first difference series一阶差分算子: first difference operator阶差: jump一阶: first order; first-order; single(-)order差别: difference; disparity; dissimilarity; distinction; unlikeness 年龄差别 disparity in age; 数[质]量上的差别 quantitative [qualitative] difference; 仅是口味差别 dissimilar in tastes only; 社会结构上的差别 unlikeness in social struction; 男女差别 disparity between men and women; 毫无差别。 there is no difference at all. 二者之间差别很大。 there is a world of difference between the two. 实际上并无差别。 there is practically no difference阶差分: difference of n-th order别图林斯基: betulinski; betulinsky骨架识别图: mid plot林况类别图: condition class map流体识别图: fluid identification plot目标识别图: target recognition chart识别图象: recognition image土地类别图: land status plan巷识别图: diagram for lane identification二阶差分: second difference; second order difference高阶差分: higher differences