单语范例（未经PONS编辑处理）
英语
- Boiling does not leave a residual disinfectant in the water.en.wikipedia.org
- Engineering strategies may include maintenance of water temperatures and residual disinfectant from the city supply water within ranges that suppresses microbial growth.www.infectioncontroltoday.com
- Warm water temperatures, complex plumbing loops, periods of water stasis and loss of residual disinfectant such as chlorine create conditions that allow microbial activity and biofilm formation.www.infectioncontroltoday.com
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