The result shows that the best fuel economy was achieved while the emission limits were met.

在满足排放法规的前提下，获得了最佳经济性。

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The European exhaust emission limits and exhaust emission characters of light duty diesel vehicles were introduced in this paper.

本文介绍了轻型柴油车的欧洲排放标准及尾气排放特点，综述了轻型柴油车氧化催化剂技术的研究和开发进展。

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Even with stringent limits, says the M. I. T. group, Americans would consume only 2 percent less in 2050 than they would have in the absence of emission limits.

MIT小组的研究表明，即使实施严苛的限制，美国人在2050年的消费量只会比没有排放限制的消费量，少2个百分点。

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The Rule sets the mercury and acid gas emission limits for new facilities below levels that can accurately be monitored.

FORBES: Big Costs, Illusory Benefits: Why Congress Should Nix The Utility MACT

Ministers are trying to make planning rules more nuclear-friendly, and hope that tighter carbon-emission limits will help nuclear energy shine by comparison with fossil-fuel plants.

ECONOMIST: Nuclear power draws nearer as renewables retreat

Some 60% to 80% of fossil fuel reserves owned by listed firms could be classed as unburnable if politicians stick to CO2 emission limits, a report warns.

BBC: Firms 'own unburnable fossil fuels'