字典網>> 英漢字典>> R開頭詞條>>root circle of toothed wheel的意思 漢英字典root circle of toothed wheel中文翻譯：【機】 齒根源 英文字典相關詞條：root canal recurrence roots compressor root running root path roots of crime root-mean-square deviation root caries root excision root of hair root cellar