飞流急湍 whirl pools and rapids ; Waters rush down in whirlpools and rapids ; waters rush

水流湍急处 quickwater

湍急的河流 raging river ; a rapid river ; Leith

急流湍滩湍流 rapids

湍急暗流 Dire Undercurrents

湍急水流 impetuous torrent

湍流急下罗讷河 Torrential Rhone

急湍塑性流动 impending plastic flow

湍急的山溪流 torrential mountain streams