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,(,514500):(),,:;;;:U445.55:B:1671-2668(2005)02-0091-021(),,44,1.2m,30m,,1:1),2),;,,,,1a22;,,1b812,,,,,3.21)(19000kN)18.23mm,23,Q-S,S-lgt,,19000kN,24540kN25930kN2)5,,,5.88m,13)8.02mm,44%,,4)19000kN13518kN,924kN,4.9%,,,,1kPa354070130120.6989.458.1840.54118.49:[1].[M].:,1995.[2]JTJ041-2000,[S].:2005-03-0119107Highways&AutomotiveApplications©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.12.1,,,,0.5m,,,,0.5m,2.2,,,1)1.0m:,,,,,,,,(1.151.25g/cm3,25Pas),2):,,2m,,,,,,,,,,,3):,,,,,,,,,,,0.5m,7d,,22,,,2.3,,,,,,,,(),,,,81,,,3,,,,,,:[1]JTJ041-2000,[S].:2005-03-0629Highways&AutomotiveApplications220054©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.