字典網>> 英漢字典>> R開頭詞條>>rotary gear pump的意思 漢英字典rotary gear pump中文翻譯：【化】 旋轉齒輪泵 rotary gear pump相關詞條：rotary drilling rotary oil burner rotary machine rotary type sampling tube rotary ringing generator rotary sand screen rotary line switch rotary pawl guide rotary retort rotary plunger relay