©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:(1966-),,,,(,046204):,,:;;:TD528+19:B:1005O2798(2003)02O0047O021111,,,,PVC,,,112,1/(kg/)/(h/)0.50.60.060.0081,,,113,,,,,,,,,305,305G,,,,,,4G305,G,,,,,305KA,G,4G305,,,4G305305KA,,,,,:,,,,,608074122©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:,,,800mmD89mm,1000mmD108mm,,,3311:,,,:,,,,,,,,::,,,,:,,,,:,CO2,,,,,312,,,4,,,,[:]84Coal2/2003