The delayed elastic deformation stage came later, the bend deflection increased more quickly, and breaking life shortened with the increase of the prolongation of the maximum load hold time.
随着最大载荷保持时间的增加，塑木复合材料进入延迟弹性变形阶段越晚，弯曲挠度增加越快，断裂寿命降低。
The instantaneous elastic, delayed elastic, and viscous deformation increase with stress level.
瞬间弹性变形和延迟弹性变形均随着应力水平的加大而加大；
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