Steam power did not merely spin cotton and roll iron; early in the new century, it also multiplied ten times over the amount of paper that a single worker could produce in a day.

蒸汽动力不仅可以用于纺织棉花和轧铁；新世纪早期，蒸汽机的使用同样大大提高了造纸的效率，蒸汽动力一天所生产的纸张总量是单个工人一天生产纸张总量的10倍。

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They then roll up the sheet and allow the cells to produce an interpenetrating mixture of structural support proteins, known as collagen and elastin.

之后将切片卷起促使细胞产生一种由结构支撑蛋白组成的混合物，即胶原及弹性蛋白。 纤维原细胞的问题在于它们会转化为平滑的肌肉细胞，最终将血管堵塞。

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MOM policies should be improved by adding safeguards that would roll back management operations when they do not produce expected results.

应当通过添加防范措施来提升MOM策略，当他们不能产生预期结果时，应该能回滚管理操作。

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Printed electronics allows manufacturers to print or roll materials onto surfaces to produce an electronically functional device.

FORBES: New Technique Creates First Plastic Solar Cell

So perhaps the eggheads can produce the politicians' missing miracle, a formula to roll back a tide of regulation that has been running one-way for almost three decades.

ECONOMIST: In love with regulation