The paper trys to analyse stability of column by the method of dynamic analysis, deduces the formula of relation between axial compressive force and frequency of transverse vibration.
尝试用动力分析的方法对压杆稳定问题进行理论分析与实验研究。
The cementing performance of such wastes as iron mine tailings, steel slag and oil shale residue was tested with XRD at middle temperature in the perspective of compressive strength and stability.
从抗压强度和安定性两方面测试了中温处理铁尾矿、钢渣及油页岩渣后物料的胶凝性能，利用XRD对中温处理后物料的物相组成进行了分析。
The study results on mechanical properties of fine cement grout and its calculus, including cohesion, stability, setting time, compressive resistance and impervious strength, etc.
介绍了细水泥浆液及其结石的物理力学特性（粘度、稳定性、凝结时间、抗压和抗渗强度等）的改性研究成果。
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