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。
The mix proportion of the anchoring material is determined by experiments. The compressive strength, adhesive force to concrete, volume stability and anchoring force with steel bar are studied.
通过试验确定无机锚固材料的配合比，并对其抗压强度、与混凝土的粘结强度、体积稳定性、对钢筋的锚固力进行研究。
The tenacity and heat stability of and phenol formaldehyde foaming materials added by nylon, were enhanced based on analysis of wear rate and compressive strength.
通过分析磨损率和抗压强度等性能，废尼龙的加入可以提高酚醛树脂和酚醛泡沫材料的韧性和热稳定性。
The tenacity and heat stability of and phenol formaldehyde foaming materials added by nylon, were enhanced based on analysis of wear rate and compressive strength.
通过分析磨损率和抗压强度等性能，废尼龙的加入可以提高酚醛树脂和酚醛泡沫材料的韧性和热稳定性。
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