Reduced cost was also instrumental in developing steam-powered rolling mills capable of producing finished iron of various shapes and sizes.

降低的成本也有助于那些能够生产不同形状和尺寸的成品铁制品的蒸汽动力轧钢厂的发展。

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The cost of placing locks on the data is less than the cost of rolling back changes when concurrency conflicts occur.

在数据上放置锁所费的成本小于发生并发冲突时回滚更改所费的成本。

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Tata Chemicals, part of the giant Tata Group, set the low-cost ball rolling last December with its launch of the Swach purifier (‘swach” means “clean” in Hindi) at 999 rupees (about A$25).

庞大的塔塔集团的子公司-塔塔化学品，去年12月以999卢比（约25澳元） (1US$=47卢比) 的价格，推出了"Swach净化器"（'swach’的印地文意思是"干净"）。

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That just raises the cost of rolling over Treasury bills.

FORBES: Companies, People, Ideas

But now, a handful of companies are rolling out lower-cost versions of these investments for those willing to give up some benefits, such a feature that bumps up your future guaranteed income if you delay taking withdrawals.

WSJ: Cheaper Annuities With Living Some Benefits

That is, today the company is rolling out a low-cost version of its intelligent virtual agent, affectionately-dubbed Sarah by some of the institutions that use it.

FORBES: It's the Attack of the Sales Bots