While vacationers are enjoying themselves aboard cruise ships throughout the world, advanced wastewater treatment systems on many ships are hard at work below deck to ensure that the travelers' holiday doesn't leave a trail of pollution in its wake. In August, Hydroxyl Systems Inc. (Victoria, British Columbia) announced $9.2 million in contracts with Royal Caribbean Cruise Lines (Miami, Fla.) to design and build four wastewater treatment process systems.
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机译：当度假者在世界各地的游轮上尽情享受时，许多船舶上先进的废水处理系统正在甲板以下努力工作，以确保旅行者的假期不会留下任何污染的痕迹。八月份，Hydroxyyl Systems Inc.（不列颠哥伦比亚省维多利亚）宣布与皇家加勒比邮轮公司（佛罗里达州迈阿密）签订了920万美元的合同，以设计和建造四个废水处理工艺系统。
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