expansionn.膨胀;扩展;扩充
expansion bend胀缩弯头,伸缩节,补偿伸长弯曲,补偿器
expansion area扩展区; 扩建压
expansion post伸缩支柱
expansion drum膨胀罐
expansion unit扩充部件, 扩充单元
expansion fold膨胀褶,膨胀褶皱
expansion gearn.膨胀装置
expansion care扩充卡
expansion tube膨胀管
expansion slotn.扩展槽