技术有效和经济有效(Technical Efficiency and Economic Efficiency) 技术有效是在给定投入要素组合下，生产 量最大化的情况下实现的。
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实践证明此项技术作为获取项目前期基础信息的有效手段，作业周期短、成本经济且现势性好，其成果兼具客观性和直观性，可有效辅助项目后续工作的实施。
The practice shows that, for the project, as an effective method for acquisition fundamental information in early time, this technique has shortened the operation cycle, and has saved the cost.
结果表明，管式超滤膜能有效去除水中的原油、悬浮物和聚合物等杂质，保证了电渗析装置的平稳运行，而电渗析是一种经济有效的降矿化度技术；
The result shows that tubular ultrafiltration membrane is able to remove crude oil, suspended substances, and polymer from the wastewater and ensures the reliable operation of electrodialysis device.
技术与经济相结合是合理确定和有效控制工程造价的最有效途径。
The combination of technology with economy is most effective way to reasonably determine and well control the engineering cost.
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