In two thousand one, a Canadian inventor, Jock Brandis, designed a hand-powered peanut sheller for a village in Mali.

2001年，加拿大的发明家约克·布兰·迪斯为马里的一个村庄设计了一款手动的花生脱壳器。

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Cold work: 'Buddy teams' dig out huge chunks of ice using a hand-powered drill to create dive holes in the White Sea, Russia.

钻冰洞：俄罗斯白海，“巴迪队”用手动钻挖出大块的冰，钻出潜水洞。

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They can use energy from the sun or can be hand-powered.

它们可以使用太阳能或手动供能。

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The final product is deceivingly simple: a collapsible, 10-inch-long, hand-powered inhaler made of plastic and metal that weighs 4 ounces.

FORBES: Easy As Breathing

On the other hand, diesel-powered cars tend to last longer and retain a higher resale value.

FORBES: Are Americans Ready To Embrace Diesel Cars? Chevy Hopes So

Unlike most conventional prosthetics, this hand boasts five individually-powered fingers -- including a fully rotatable thumb.

CNN: Bionic hands controlled by iPhone app