breakpoint chlorination

例句：

1. 1. The breakpoint between the two cultures is often marked by a deep sense of discord.
   两种文化之间的转折点往往伴随着深刻的不和谐感。
2. 2. The company's decision to invest in new technologies was a critical breakpoint for its future growth.
   公司决定投资新技术是其未来发展的关键转折点。
3. 3. The scientist found a breakpoint in the data that could explain the sudden drop in productivity.
   科学家在数据中发现了一个转折点，可以解释生产力突然下降的原因。