mat density

This paper illustratively analyzes the nonlinear evolution of phonon wave density grate in a stimulated Brillouin scattering (SBS) process by using the principle of light forces, and discusses the characteristic difference between steady state narrow band SBS and steady state broad band SBS.

利用光压原理对激光稳态受激布里渊散射 (SBS)过程中声子波密度光栅的非线性演变情况作了图示化的深入分析 ,并直观地解释了稳态窄线宽SBS与稳态宽线宽SBS的特性差

The affect of the cascade solidity to the efficiency of tubular turbine is discussed theoretically.

本文从理论上讨论了贯流式水轮机转轮叶栅稠密度对水轮机水力效率的影响,模型试验结果也说明了这一点。