Critical'会话密钥criticaladj.批评的；挑剔的；决定性的；危险的adj.临界的Critical Values临界值critical theoryn.批判理论；批评理论critical thrust临界推力critical height临界高度Critical trauma危重创伤critical clouds关键云critical radius临界半径critical school批判学派critical factor临界因子critical events关键事件