Space Propulsion begins with a review of rocket propulsion fundamentals.
Space Propulsion begins with a review of rocket propulsion fundamentals.
在太空推进这门课里，我们将以回顾火箭推进基本原理为开端。
Space Propulsion begins with a review of rocket propulsion fundamentals.
在太空推进这门课里，我们将以回顾火箭推进基本原理为开端。