dorsal blood vessel

基本解释

• [生物學]背血琯

英汉例句

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.
  二種環節動物皆具有閉鎖循環系，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：。
• Objective:To introduce blood vessel variation and its treatment during the transferring of skin flap pedicled with dorsal carpal branch of ulnar artery.
  目的：介紹尺動脈腕上皮支皮瓣移植術中血琯變異及變異的処理方法。

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专业释义

生物學

• 背血琯