人工湿地已被公认为是高效低耗的处理污水的系统。
Constructed wetlands had been considered as an economical system of purifying waste water.
实践表明：本法是一种高效低耗、简便、效果好的治理方法。
Practice shows it is good method with high efficiency, low consumption, easy operation and satisfactory treatment result.
我厂最近自主开发生产一种：高效低耗、经济实用新型卧式液压拉床。
I plant a recent independent development and production of: low-efficient, economical and practical new horizontal hydraulic broaching machine.
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