西门子公司是另外一家拥有强大水处理技术的公司，它的催化碳水处理过滤器是水处理的关键技术。
Siemens is another company with a robust water technology business and catalytic carbon water treatment filters are critical for water treatment.
我们可能会在更复杂的集成中重用转换器、过滤器，甚至是服务催化器。
We could potentially reuse that transformer, filter and even the service activator in more complex integrations.
该系统的核心是一个特殊的催化转化器催化剂的氧化和下游的微粒过滤器。
The heart of the system is a special catalytic converter downstream of the oxidizing catalyst and the particulate filter.
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