“umbilical cord”的概念、定义、翻译、参考文献-科学参考

单词	umbilical cord
释义	umbilical cord [ǝm`bil·ǝ·kǝl ´kȯrd] ^{AEROSPACE ENGINEERING} Any of the servicing electrical or fluid lines between the ground or a tower and an uprighted rocket vehicle before the launch. Also known as umbilical. ^EMBRYOLOGY The long, cylindrical structure containing the umbilical arteries and vein, and connecting the fetus with the placenta.
随便看	keep-alive circuit keep-alive electrode keeper keeps Keesom force Keesom relationship Keewatin kefir keg buoy Kegel karst kehoeite Keilor skull Kekeya needle problem Kekulé structure Keldysh theory K electron Kell blood group system kellering Kellner eyepiece Kellogg equation kelly Kelly ball test kelly bushing keloid keloid acne

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