字典網>> 英漢字典>> S開頭詞條>>step gate casting的意思 漢英字典step gate casting中文翻譯：【機】 分級進模口鑄造英文字典英文字典相關詞條：stepped day work stepped pulley step-up stepped wheel gear step rate stepwise polymerization stepwise refinement stepless speed variator step-bar test piece step-wedge