The Sparassis crispa of different growth stages were supplemented with carbon and nitrogen sources with different concentrations and were fed-batch cultured under different feed modes,the best feed mode in liquid fermentation was chosen by analyzing the dry weight of mycelium and the production of exopolysaccharide.

Concerning the problems existed in the compensation system of expressway requisition land,this paper points out lower compensation standard,unscientific compensation way and sever withholding compensation fund in management and granting at present.

The land monetization compensation way has become one of resettlement placement compensation ways which needs to explore positively.

According to the subsidy form, they could be divided into explicit direct-subsidy, hidden direct-subsidy and explicit indirect-subsidy, hidden indirect-subsidy.

The selection of compensation mode and the arc-suppression coil is the main problem in the operation of resonant grounded systems.

Besides, it studies the effect of neutral point arc extingushing coil s compensation mode of generator onto 3U 0 stator earthing protection and generator s insulation.