释义 |
umbilical cordn. 1 a flexible cordlike structure containing blood vessels and attaching a foetus to the placenta 脐带 2 a supply cable linking a missile to its launcher, or an astronaut in space to a spacecraft 操纵缆(指连接导弹和运载火箭的供应缆);空间生命线(指连接太空中宇航员和宇宙飞船的供应缆) |