“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	second crop second-degree burn second-derivative map second detector second-foot second-foot day second generation second-generation computer second growth second hand second law of motion second law of thermodynamics second-level controller second mean-value theorem second messenger second mining second moment of area second-order climatological station second-order difference second-order equation second-order leveling second-order reaction second-order relief second-order station second-order subroutine

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