The result shows that this method is a new type, high efficiency and practical purification method and some improvement ways are also raised.

研究结果表明：该方法是一种新型、高效、实用的油烟净化方法，提出了进一步完善该方法的研究内容。

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The results show that the case teaching can make students learn initiatively, positively, and make the learning content easy, improve learning efficiency and practical ability.

矿业工程类课程教学结果表明，案例教学可增强学习的主动性、积极性，易化学习内容，提高学习效率和工程实践能力。

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Point out practical ways to improve efficiency and cut costs in the workplace.

指出实际可行的方法来提高效率并节减开支。

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And in practical terms, we can define the efficiency as the ratio of the heat in to the work out.

在实际中，我们定义,效率为热与功的比值。

麻省理工公开课 - 热力学与动力学课程节选

Cliff Jordan, cabinet member for efficiency, said retaining County Hall was "the most practical and affordable solution".

BBC: County Hall, Norwich

"The efficiency of conventional heat engines is limited both by the laws of thermodynamics and practical concerns over the cost of building and operating complex engines, " says Los Alamos researcher Scott Backhaus.

CNN: Lab develops engine for the future

Fully exploiting wherever practical the best available efficiency techniques throughout the U.S. economy could save half our oil and gas use, and three-fourths of our electricity, at about an eighth of their current price.

FORBES: Magazine Article