The quality supervision of X ray testing of the welds in nuclear power plant fuel rods was introduced including its necessity, basis, contents and implementation.

在实践的基础上，较全面地介绍了核电站燃料棒焊缝X射线检测质量监督的必要性、监督依据和内容以及监督的实施情况。

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In this paper, the influence on the car performances of the power, fuel economy and exhaust emission by far-infrared ray activating petrolic molecules is studied.

本文研究远红外线活化汽油分子后对汽车动力性、燃油经济性和排放污染物的影响。

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It directs my administration, under the leadership of Transportation Secretary Ray LaHood and EPA Administrator Lisa Jackson, to develop a standard to improve fuel efficiency and reduce harmful emissions for trucks, starting with the model year 2014.

WHITEHOUSE: Promoting Cleaner, More Efficient Vehicles