字典網>> 英漢字典>> S開頭詞條>>step-down method的意思 漢英字典step-down method中文翻譯：【經】 逐步分配法相關詞條：step regulator step penetrameter stepwise program refinement stepwise decomposition step-by-step refirement step-by-step call indicator stepladder stage stepson step into the shoes of sb step up