研究人员发现，把所有这些因素都考虑进去，普通美国人若要降低全球暖化的废气排量，吃素会比换开Prius更为有效。
The researchers found that, when it's all added up, the average American does more to reduce global warming emissions by going vegetarian than by switching to a Prius.
欧洲已经设法通过高燃油税、小排量汽车和有效的公共运输来减少石油消耗量。
Europe has managed to reduce oil consumption through high gasoline taxes, small cars and efficient public transportation.
采用该技术方案，能够有效地减小排量脉动，且成本较低、结构简单。
By adopting the technical proposal, the rotor pump can effectively reduce discharge impulse with low cost and simple structure.
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