Understanding vacuum fluctuations is on the forefront of research not only to better understand our universe but also for stopping micro-mechanical machine parts from sticking together.

了解真空起伏，是现在科学研究的最前缘课题，它不但有助于我们更了解我们的宇宙，也可以帮助我们找出防止微机械零件粘着在一起的方法。

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I'm doing Mechanical Engineering which is really interesting but it covers quite a lot of areas like materials science, machine design, physics and of course mechanics.

我学的是机械工程，这很有趣，但它涵盖了很多领域，比如材料科学、机械设计、物理，当然还有机械学。

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With labour one of their biggest costs—42 percent of production expenses on U.S. farms, on average—they started using a mechanical harvester adapted from a machine used by wine makers.

由于劳动力成本是他们最大的成本之一——平均占美国农场生产费用的42%——他们开始使用一种由酿酒商使用的机器改装而成的机械收割机。

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You went to the table for your election district, signed in, went to a big old steel mechanical voting machine made in Jamestown, New York, pulled a big lever, set small levers for all the candidates you wanted, pulled the big lever back, and were done.

FORBES: New York's New Voting System Is a Disaster

No voting machine in the world, being mechanical that is operated by the human hand, can achieve the accuracy we are demanding of it in this election.

FORBES: Computing Desire

It functions as a wonderful mix of the mechanical and the organic, as a steady drum machine and languid pedal steel ring out side by side.

NPR: Heartfelt Emotion in an Orchestral Arrangement