The action of lifting the nose of a space shuttle to prepare for landing. This occurs 519 m above the ground, about 0.8 km from the runway and some 15 seconds before touchdown, as the shuttle slows to 483 kph.
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。