pre-chlorination

英[p'riːklɒrɪn'eɪʃn] 美[p'riːklɒrɪn'eɪʃn]
  • 预氯化
  • prerecorded v.事先录音
  • signal n.信号;标志v.(发信号)通知、表示adj.显著的
名词 prechlorination:
  1. chlorination prior to another chemical process