"ding" . "斯丁路" . "Si ding lu" . "(Steenrod, Norman E. 1910-) ding Si ding lu" . "(Steenrod, Norman E. 1910-) 斯丁路" . "斯丁路 (Steenrod, Norman E. 1910-)" . "Si ding lu (Steenrod, Norman E. 1910-)" . . . .