Great Britain had large amounts of coal; however, there were not yet efficient means by which to produce mechanical energy or to power machinery.

英国有大量的煤；然而，当时还没有有效的方法来产生机械能或为机器提供动力。

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In Dujiangyan, a large mechanical digger scoops slabs of concrete and twisted metal rods from a massive pile of rubble.

在都江堰，一台大型挖掘机从一大堆碎石中铲出混凝土板和扭曲的金属杆。

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To address mechanical turks, as well as the most sophisticated spam robots, you need to harness the power of the large community of people who hate spam as much as you do.

要解决机械土耳其人的问题和对付复杂的垃圾信息机器人程序，需要借助由与您一样憎恨垃圾信息的人所组成的社区的力量。

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He said the Earth is like a large mechanical device that will survive only if people living on it know how to operate it correctly.

VOA: special.2010.05.30

There are some large companies like from where I'm from that hire mechanical engineers.

有许多像我家乡的几家大型公司，都招聘机械工程师。

就业很难 - SpeakingMax英语口语达人

By the end of the 13th century, Italian engineers were building large mechanical clocks inside towers, driven by slowly descending weights.

FORBES: No. 11 The Watch

Large mechanical rollers shape pool-cue sized rods of silver, there's the sound of metal being worked, and the smell of gas in the air.

BBC: How tech is transforming jewellery

Huts 11 and 11A at the Buckinghamshire museum were the first to house the large electro-mechanical Bombe devices, which decrypted German military messages during World War II.

BBC: Bletchley Park Enigma code hut to be restored