The main thruster on a space shuttle that is used for quick rotations and straight-line translation manoeuvres. The shuttle has 38 primary jets, and six small thrusters called ‘vernier jets’.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。