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1·The result shows that average absorption coefficient and noise reduction coefficient separately equal to 0.

结果表明材料的平均吸声系数和降噪系数分别达0。

2·Stress reduction coefficient of pile and nearby soil is calculated, and it is a steadily numerical value at some load.

计算了桩间土应力折减系数，发现荷载超过某一数值以后，桩间土应力折减系数保持在一个稳定的数值附近。

3·With the increase of the ratio of speedup passenger trains, the reduction coefficient increases first and then decreases, but the variation is small.

扣除系数随提速客车比例的增加先增大后变小，但变化幅度不大。

4·The pressure reduction coefficient of PE gas pipeline is an important design parameter, and depends on the soil temperature around the buried pipeline.

聚乙烯燃气管道的压力折减系数是重要的设计参数，取决于管道埋设周边地温。

5·The deflection angle of injection mainly depends on the valve port angle and almost has no relation to the valve size, but the reduction coefficient vavies with both of them.

射流的偏转角主要受阀口角度的影响，几乎与阀口尺寸无关；但射流的收缩系数则与两者都有关系。

6·The result shows that average absorption coefficient and noise reduction coefficient separately equal to0.58and0.60 and fine property of sound absorption at middle-low frequency.

结果表明材料的平均吸声系数和降噪系数分别达0。58和0。60，且材料的中低频吸声性能优良。

7·A cusp catastrophe model of key points horizontal displacement and reduction coefficient is built by using the strength reduction finite element method to evaluate the slope stability.

采用有限元强度折减法进行边坡稳定分析，建立边坡内最大水平方向位移与折减系数尖点突变模型，并以此作为边坡是否失稳的判断标准。

8·The strength reduction coefficient before a well-defined equivalent plastic shear strain (EPSS) running through from the bottom to the top of a slope is considered as its safety factor.

采用边坡某一幅值的等效塑性剪应变区，从坡脚到坡顶贯通前的折减系数作为边坡安全系数。

9·The minimum safety coefficient was defined as the reduction coefficient, when the system was fairly close to the limit equilibrium state through decrement of material strength step by step.

此时，系统达到临界平衡状态时所对应的材料强度降低倍数即为整体最小安全系数，临界平衡状态定义为边坡内的塑性屈服区能够形成潜在的滑移通道时的状态。

10·By using a numerical method, the effect of changing in magnetic field upon vibration frequency and coefficient of reduction is presented.

最后给出数值结果，表明磁场的变化对振动频率及衰减系数的影响。