UPEn.单总线奇偶错upadv.向上；起来；上升；往上prep.向上adj.向上的；上行的n.上升v.上升；增加upgrading mechanism升级机制upercritical drying超临界干燥uplink transmission上行线路传输upflow regeneration逆流再生up one s conscienceadv.当然(一定)up to and including直到并包括up path sensitivity上行线路灵敏度up someone's streetup stream equipment上辅机up to the elbows inv.忙于