Sigs
abbr. simplified inertial guidance system 简易惯性制导系统; stellar inertial guidance system 天体惯性制导系统
🗣️ 情景例句
It was my please.
荣幸之至。
Open your eyes!
眼睛放亮一点！
Because the gravity on the Moon's surface is only a sixth of Earth's
由于月球表面的重力仅是地球表面的1/6-