常见例句amphicribral siphonostele 双韧管状中柱cladosiphonic siphonostele 具枝隙的管状中柱amphihloic siphonostele [医] 双韧管状中柱ectophloic siphonostele 外韧管状中柱amphiphloic siphonostele 双韧管状中柱 返回 siphonostele