By 1800 more than a thousand steam engines were in use in the British Isles, and Britain retained a virtual monopoly on steam engine production until the 1830s.

到了1800年，一千多台蒸汽机在不列颠群岛运行，直到19世纪30年代，英国一直垄断着蒸汽机的生产。

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Words like "legis actiones" were in use as a legal procedure in civil cases.

像“法律诉讼”这样的词在民事案件中被作为一种法律程序使用。

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Early forms of the middleware were in use by 1995.

中间件的早期形式一直使用到1995年。

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He died last year. By that time, hundreds of thousands of the filters were in use in developing countries.

VOA: special.2009.06.22

Were it not better done as others use, To sport with Amaryllis in the shade, ? Or with the tangles of Neaera's hair?

为何不像他人一样，在树荫下玩弄喇叭花，或是尼哀若的发卷？

耶鲁公开课 - 弥尔顿课程节选

And you'll use "If I were" to talk about yourself in the present in relationship to the past.

你可以用“If I were”来比较现在的你和过去的你。

If I were 课堂 - SpeakingMax英语口语达人

By the First World War more than 130 services were in use.

BBC: NEWS | UK | Magazine | R.I.P. Mail trains

In doing so, we learned what Anti-Virus technologies were in use and we also learned what the policies were for controlling outbound network traffic.

FORBES: Inside The Brains Of A Professional Bank Hacking Team

Ahead of the sentencing, a defense lawyer for McCormick told the court that there was no evidence that vehicles carrying bombs passed through checkpoints where his devices were in use.

CNN: Maker of fake bomb detector gets 10 years in prison