基本解釋回抽,側線循環(huán)回流同根派生 pumpback相關詞英漢例句Totally 23 cases of traditional block anesthesia had pumpback blood，needing to change direction and reinject. 直接麻醉法有23例注射麻藥前回抽有血，經改變方向后重新注射;pumpback reflux 側線回流pumpback更多例句