The deviation of a tape from a linear path when transported across the heads, causing a time displacement between signals recorded on different tracks and amplitude differences between the outputs from individual tracks owing to variations in alignment.; 磁带通过磁头时相对于运行路线的偏差,它会导致记录在不同磁道上的信号的时差,以及 由于纵向弯曲而引起的各磁道输出信号的幅度的差异。