| 释义 |
as·tro·nau·tics
\ˌ ̷ ̷ ̷ ̷ˈ ̷ ̷d.iks\ noun plural but usually singular in construction
Etymology: International Scientific Vocabulary astr- + -nautics (as in aeronautics)
1. : the science that treats of the construction and operation of vehicles designed to travel in interplanetary or interstellar space
2. : astrogation |