Dr. Barres and his colleagues are now expanding on the study by comparing epigenetic patterns in the sperm of obese fathers with the patterns in the blood cells of their offspring.

巴雷斯博士和同事们现在正进一步深化研究，对肥胖父亲与其后代的血细胞中的表观遗传学模式进行比较。

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By comparing temperatures on the same day, but some kilometres apart, the bomber raid study was able to get around this problem.

通过比较同一天但是相距数公里的两个地方的气温，对于轰炸行动的研究结果可以回击这种质疑了。

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Reduced maintenance: Over the extended life of the equipment, vacuum retrofits can reduce maintenance by as much as 60% according to a recent study comparing vacuum to air magnetic 15-kv breakers.

被减少的维护：在设备的延长的生活期间，真空式样翻新可能减少维护尽量60%根据一项最近研究比较真空与空气磁性15 - kv破碎机。

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By comparison, the patients in the ENHANCE study comparing Vytorin and Zocor had arteries that were only 0.7 mm thick.

FORBES: Magazine Article

The evidence collected by Dr Dangour was for a study due to report later this year comparing fish oil supplements with placebo.

BBC: Oily fish dementia boosts queried

Compiled by researchers in the US, the Timss study is an important benchmark for comparing standards in maths and science around the world.

BBC: Science and maths skills warning