two portadj.四端的(二端对的)twonum.二；两个two thousand one hundred and fifty three(=2153) 二千一百五十三two frequency coincidence addressing sch双频率符合选址法two - dimensional coordination polymer二维配位聚合物two-sided invariant linear functionals双不变线性泛函two thousand six hundred and seventy six(=2676) 二千六百七十六two thousand five hundred and fifty five(=2555) 二千五百五十五two thousand five hundred and sixty four(=2564) 二千五百六十四two thousand four hundred and sixty nine(=2469) 二千四百六十九two-head automatic arc welding machine自动双弧焊机two thousand nine hundred and ninety one(=2991) 二千九百九十一