A tubular excretory organ in many invertebrates, such as mollusks and earthworms.

 
  • 腎管許多脊椎動(dòng)物,比如軟體動(dòng)物和蚯蚓的管狀排泄器官
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan