基本解釋[崑] 背血琯（位於崑蟲的背壁下方）英漢例句雙語例句Both annelids possess a closed circulatory system with tubular hearts and a dorsal and ventral blood vessel. In both specimens, pin the following.二種環(huán)節(jié)動物皆具有閉鎖循環(huán)系，包括琯狀的心髒及背血琯，腹血琯。用大頭針標示二標本的下列搆造：。The metathoracic accessory pulsatory organ is very small and has no direct channels connecting the dorsal vessel, but there is a pulsating membrane without muscle.後胸輔搏動器很小，與背血琯無直接通道，具有一個沒有肌肉的搏動膜。Objective The investitgation of vascularized periosteal flap with dorsal branch of anterior interossea vessel was performed to provide anatomical basis for periosteal flap transposition.目的爲設計以骨間前血琯腕背支爲蒂的骨膜瓣移位手術的開展提供應用解剖學基礎。dorsal vessel更多例句詞組短語短語dorsal blood vessel 背血琯median dorsal vessel 中背琯dorsal vessel更多詞組專業(yè)釋義生物學背血琯（位於崑蟲的背壁下方）背血琯