Damen Shipyards Group, a Dutch firm that builds more than 150 ships a year, has found that such cavities cut fuel consumption by about 15% on a 60-metre ship that carries cargo on rivers.

一家年造船量在150艘以上的荷兰公司---达门造船集团已经发现长度为60米的河运货船可以通过这些气孔减少15%的燃料消耗。

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Amazon has built a strong community online, making it one of the major players in collaborative consumption and the group buying trend.

亚马逊建立了强大的网络社区，使其成为合作消费和集团购买趋势中的重要角色。

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"One simple and effective measure to reduce soft drink consumption in this age group would be to remove soft drink machines from schools and other public places where adolescents gather," they wrote.

“一个简单而有效的措施去减少青少年在软饮的消费，是把软饮机从学校和其他青少年聚集的公共场所撤离。”他们写道。

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The more likely conclusion is that dropouts in the low sugar group returned to old beverage consumption habits in the interim, thereby muddling the intervention effect on the 18-month results.

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People in this group were also the only ones who showed a significant increase in their maximum oxygen consumption (which measures the capacity for aerobic exercise) compared to the non-exercising control group.

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Branko Milanovic, lead economist for the World Bank research group, sent me this comparative analysis based on household income or consumption surveys worldwide, adjusted for purchasing power differences.

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