等效瞬时辐射
effective instantaneous radiation
瞬时虚功率
instantaneous reactive power
瞬时旋转中心
instantaneous center of rotation
instantaneous center/centre of rotation
瞬时旋转轴线
instantaneous (instant) axis of rotation
instantaneous axis of rotation
瞬时选择性
instantaneous selectivity
瞬时压力脉冲法
transient pressure pulse method