patsim retardant pattern simulation modellpatsim= retardant pattern simulation modelpatsim=retardantpatter imulationmodel按: press; push down地面: the earth's surface; ground图: picture; chart; drawing; map阻滞: retardant的: 4次方是 The fourth power of 2 i ...下载手机词典可随时随地查词查翻译