METHODS Sixty-three cases of rhegmatogenous retinal detachment patients were randomly divided into two groups: Treatment group was treated by perioperative traditional Chinese medicine intervention combined with the sclera pad pressure,cryocoagulation.

This paper proposes to reduce flue discharge temperature by using condensation technique on boiler to recover and utilize latent heat of vaporization in flue gas,thus improving heat efficiency.

Based on the account of the development course of PE condensation gas fluid process,the article analyses the proper conditions of supercondensation technology and briefly describes the engineering items of capacity expansion reform of PE gas fluid process plant.

After the industrial production of condensing techniquein the gas-phase LLDPE plant, the polyethylene companies using gas-phaseprocess have invented the MAO metal catalyst, which is in accordance withthe condensing technique and has be industrialized.