“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	octaphyllite octave octave-band analyzer octave-band filter octave-band oscillator octave frequency band octet octet rule octillion Octocorallia octode octoid octomethylene octonary signaling octonions octopamine Octopoda Octopodidae octopus octupole octyl- octyl alcohol octyl aldehyde octyl formate octyl phenol

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