“umbilical duct”的概念、定义、翻译、参考文献-科学参考

单词	umbilical duct
释义	umbilical duct [ǝm`bil·ǝ·kǝl ´dǝkt] See <<vitelline duct>>
随便看	tail fin tailgate tail house tailing tailings tailings settling tank tail out tail pulley tailrace tail rope tail-rope system tailshaft tail sheave tailstock tail surface tail track system tail warning radar tailwater ditch tailwind taino Tainter gate takedown takedown time takeoff takeoff assist

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