实验表明，平均背景法的稳定性要优于帧间差分法。
The experiment shows that the stability of average background method is stronger than frame differential method.
结合有限元方法或有限差分法和极限平衡法各自的优点详细分析边坡稳定性，提出了基于条分法和容重增加法耦合分析的基本原理及边坡安全系数的计算程序。
On the basis of the slice and gravity increase methods, a fundamental principle of couple analysis, and a procedure for calculating the slope safety factor were put forward.
在保证计算精度和稳定性的前提下，利用有限差分法对基本方程进行了离散化，得到了数学模型的差分格式。
The finite difference forms of govern equations are derived which meet the demands of accuracy and calculation stability.
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