The science and technology at the time the product is put in circulation is at a level incapable of detecting the defect.

将产品投入流通时的科学技术水平尚不能发现缺陷的存在的。

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The science and technology at the time the product was put in circulation was at a level incapable of detecting the defect.

将产品投进流通时的科学技术水平尚不能发现缺陷的存在的。

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Most historians have attributed that inflation, in part, to the importation, starting in 1550, of silver from the Americas, which supposedly put much more currency into circulation in Spain.

很多历史学家都认为当时的通货膨胀在很大程度上是由起始于1550年，来自美洲的大量银进口，这应该让西班牙的流通货币大幅增加。

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In May, a new five-euro note will be put into circulation by the European Central Bank.

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It is controlled in part by the amount of dollars printed by the Treasury and put into circulation by the Federal Reserve.

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