动态滞后误差的大小不但与跟踪系统有关，还与目标运动特性有关。

The amount of the dynamic lag errors not only is concerned with the tracking system, but also concerned with the moving characteristics of target.

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利用杨氏模量测定仪对钢丝力的滞后特性进实验分析，为减少实验误差和检验弹簧的好坏提供了一种实验途径及理论依据。

Using Young modulus of apparatus, the hysteresis property of tension exerted by steel wire is analyzed, the experimental way and theoretical principle are provided to check the quality of springs.

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