The main conclusions are as follow: 1. The wind stress of sea surface is one dynamical factor of thermocline, which has important effect on intensity and depth of the seasonal thermocline.

In the formula, the dynamical action on blocks by tidal bore was expressed by the relative height of tidal bore, and the impact of base water depth on the stability of blocks was taken into account.

The dynamical assemble control system of EV is analyzed and researched in-depth.