Atherosclerotic cardiovascular disease is a major health problem around the world.Obesity is a primary risk factor for a......

Natural gas should be heated and throttled for the purpose of purification and transportation at the first gas productio......

边坡在渐进破坏过程中,力的分布和稳定性分析是值得研究的。针对推移式和牵引式边坡,分别提出了5种破坏机理,根据边坡现状特征,提......

在现代化工厂中很多设备需要智能控制，受环境的限制，需要对各类设备做好各种保护的同时也有很多信号需要传送到主控室。而当厂区面积......

统具有明显的保护作用....