提出了机床切削系统稳定性极限预测方法，就实验系统的切削稳定性极限进行了预测。
A method to predict the stability limits of machine tools was proposed, and the results predicted with the method were compared with experimental data.
改进了锚杆自由段长度的计算方法，推导了结构的基础埋深和稳定性极限平衡分析的计算公式。
The calculation method for freedom length of the anchor bar is improved, and the calculation formulae of structural foundation embedded depth and stability limit equilibrium analyses were derived.
其次，论述了关于拱桥稳定性的挠度问题和极限承载力的几何非线性理论。
Secondly, it discussed the deflection in stability of arch bridge and geometry nonlinear theory on ultimate load-carrying ability.
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