为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

Two di-n-butyl dithiocarbamate derivatives were easily synthesized. Their tribological performances as lubricating oil a......

The elastic-plastic method is often used in designing the inner flat bulkhead plates of submarines, and the upper struct......

准确计算整体加筋壁板轴压承载能力是机翼壁板设计分析中的关键因素,对飞机机翼结构效率的提高和重量控制至关重要。因此必须研究......

The concept of load-carrying capacity of the soil can be evaluated by two main components: permissible stress and permis......

Nanoparticles can be taken as additives and added into various fluids to improve their lubricating performances. At pres......