在印度大陆东部200英里（326公里）处，Tata咨询服务中心的总技师Ananth Krishnan也在为一个低技术的设备而激动不已：清水过滤器。
In Chennai, 200 miles (326km) farther east, Ananth Krishnan, chief technology officer of Tata Consultancy Services (TCS), is equally excited about an even lower-tech device: a water filter.
主过滤器进行连续清理，次过滤器收集细小颗粒，同时采用热泵来提升总热效率。
The primary filter for continuous cleaning, and the secondary filter for collection of fine particles. Heat pump can also be offered to increase the total thermal efficiency.
主过滤器进行连续清理，次过滤器收集细小颗粒，同时采用热泵来提升总热效率。
The primary filter for continuous cleaning, and the secondary filter for collection of fine particles. Heat pump can also be offered to increase the total thermal efficiency.
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