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31. The phosphatidylinositol turnover of S180 cell membrane was inhibited strongly when PPS acted on cell membranes at suitable condition.

32. The gradient PPS/FEP composite anti-corrosive coatings were prepared on carbon steel. The bonding strength of all coating systems was determined by the pull-off test.

33. The structure changes of forced out PPS were analyzed with ab initio calculation.

34. PPS covers, plastic pipes pieces, plastic products manufacturing sales; Control of the watercourse, fittings wholesale, retail.

35. The crystallization property of PPS is dependant on relative molecular weight markedly.