recoilv.退却；畏缩；弹回；报应n.畏缩；弹回；后坐力recoil slide rail后座滑轨recoiling electron反冲电子recoil check spring复进弹簧recoil of bowstring弦的反冲recoil spectrometer反冲谱仪recoil distribution反冲分布recoilless emission无反冲发射recoil counter tube反冲计数管recoil of the board跳板反弹recoil permeability回复磁导率