In 1965, Rajaratnam has put forwarded new concept that hydraulic jump is a kind of wall jet.According to mixed flow theo......

Sulfate attack is one of the most important factors influencing the durability of cement concrete,and is especially take......

Valve-less piezoelectric pump with hemisphere-segment group is a novel bluff-body pump,which has hemisphere-segment grou......

水流阻力系数是研究基岩水运动的重要参数。本文以稳定条件下单一流径基岩水运动方程为基础，根据大量的试验数据，。并通过理论分析，得......