After analyzing the interaction between charge particles and strong Langmuir turbulence we find whether the protons and electron can be accelerated is relevant to the intensity of Langmuir turbulence.

The vibrating movements and the sonorous songs through the whole dance remind people of the hard efforts made by the Uygur people in fighting against draught and in developing new oases.

The Lagrangian vortex method is applied to direct description of the unsteady flow due to rotor-stator interaction in turbomachinery by tracing the trajectory of vortices.