短语词组短語bubble -water flow 氣泡bubble jet flow 氣泡射流bubble e flow 泡狀流bubble type flow counter 泡式通氣計數器bubble flow column 環流泡沫塔bubble flow control Bubble 流控Dispersed bubble floW 分散泡狀流bubble of sejparated flow 氣流分離區 返回 bubble flow