内积    inner products?

内部应力    inner stress?

面内剪切    inplane shear?

输入    input power?

输入阻抗    input resistance?

输入    input?

不稳定常数    instability constant?

不稳定性判据    instability criterion?

不稳定应力    instability stress?

不稳定性    instability?

不稳定平衡    instable equlibrium?

不稳定运动    instable motion?

装置    installation?

瞬时加速度    instantaneous acceleration?

瞬时角速度矢    instantaneous angular velocity vector?

瞬时角速度    instantaneous angular velocity?

转动瞬轴    instantaneous axis of rotation?

瞬轴    instantaneous axis?

瞬时破裂    instantaneous breakdown?

瞬时加速中心    instantaneous center of accelerations?

瞬时转动中心    instantaneous center of rotation?

瞬时速度中心    instantaneous center of velocities?

瞬时中心    instantaneous center?

瞬时量    instantaneous flow?

瞬时力    instantaneous force?

瞬时频率    instantaneous frequency?

瞬时装载    instantaneous load?

瞬时运动    instantaneous motion?

瞬时轨道    instantaneous orbit?

瞬时轨道面    instantaneous orbital plane?

瞬时扰动    instantaneous perturbation?

瞬时功率    instantaneous power?

瞬时转动    instantaneous rotation?

瞬时螺旋轴    instantaneous screw axis?

瞬时声压    instantaneous sound pressure?

瞬时空间    instantaneous space?

瞬时应变    instantaneous strain?

瞬时坐标系    instantaneous system of coordinates?

瞬时值    instantaneous value?

瞬时可变结构    instantaneous variable structure?

瞬时速度    instantaneous velocity?

瞬时的    instantaneous?