The second type is multi-functional bottle opener, bottle opener mechanical lever type;

第二种类型为多功能开瓶器、机械式杠杆类开瓶器；

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Traditional mechanical lever weighing methods can cause a mechanical error, thus decrease the speed and precision.

传统机械杠杆的称重方法造成较大的机械误差，影响称量的速度和精度。

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In other words, sprinters sacrifice the mechanical advantage of a long lever for the benefit of a stronger push-off.

换句话说，短跑选手牺牲了长杠杆所带来的力学优势从而获得了更为迅猛的起跑速度。

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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