全部

1·The natural logarithm of this ratio is called the logarithmic decrement.

此比率自然对数称为对数的减量。

2·The logarithmic decrement of the cable is then calculated from the free decay curve of the displacement data.

通过人工激振拉索后，测得拉索的振动波腹点位移衰减时程曲线，计算得拉索的对数衰减率值。

3·The results show that in traditional aging temperature, the stress relaxation curve of 7050 aluminum alloys exhibits a classical logarithmic decrement curve.

结果表明：时效温度范围内7050铝合金的应力松弛曲线表现为典型的对数衰减曲线。

4·The important action of eigenvector in estimating stability margin is investigated, and the limitation of both system damping and logarithmic decrement criteria is pointed out.

探讨了特征向量在评估稳定性裕度的重要作用，指出了传统的对数衰减率与系统阻尼判据在评估轴承稳定性裕度时的局限性。