This is how the electric motor transforms electrical energy into mechanical energy.

这就是电动机将电能转化机械能的过程。

It's a fundamental principle regarding how generators, which change mechanical energy into electrical energy, operate.

这是关于发电机如何将机械能转化电能的基本原。

In quadrupeds, like the tiger, their tricep and shoulder muscles contract in a long gait in a special way that absorbs the mechanical energy and disperses it as harmless heat.

偶足类动物，例如老虎，它们的三头肌和肩部肌肉长时间以一种特殊的方式收缩，以此来吸收机械能并将其分害的热量。

In general, metal foams are useful for high-tech shock and impact absorbers, the gas inside makes them extremely compressible, so they can absorb a lot of mechanical energy, while still retaining some of the strength and durability of a metal.

总之，金属泡沫对高科技震动和压力吸收的帮助很大，内部体让物质极度压缩，可吸收很多机械能，而且依然保留金属的强度和耐用性。

The amazing thing about your complicated, self-healing, blood-guzzling muscle tissues is that they turn chemical potential energy into mechanical energy, or movement, simply by doing two things — contracting and relaxing.

你复杂的，自愈的，耗血的肌肉组织的神奇之处在于它们将化学势能转化机械能，或运动，仅仅通过做两件事情——收缩和放松。

The competition will not require the machines to produce electrical power. He says changing the mechanical kinetic energy into electrical energy is easy.

这场竞赛不需要机器来制造电力，他说将机械动能转化电能很简单。

That vibration converts sound energy to mechanical energy, which muffles the echo that gets back to the bats.

这种振动将超声波的能量转化机械能，从而减弱了传回蝙蝠的回声。

Regarding electric currents and magnetic fields, Faraday conducted experiments in 1821 on a device that changed electrical energy into mechanical energy, eventually becoming the electric motor.

关于电流与磁场，法拉第于1821年在一台将电能转化机械能的装置上进行了实验，该装置最终演变电动机。

And he learned how to change that current into mechanical energy.

他学会了如何将电流转化机械能。

Ten years later, he discovered electromagnetic induction, a fundamental principle regarding how generators, which change mechanical energy into electrical energy, operate.

十年后，他发现了电磁感应，这是关于发电机如何将机械能转化电能的基本原。

He was conducting experiments in 1821 on a device that changed electrical energy into mechanical energy.

他在1821年进行实验，研究一种将电能转化机械能的装置。

" Power, " finally, can mean energy, especially electrical or mechanical energy.

“Power”最后，还可以指能量，尤其是电能或机械能。

The ball mill's mechanical energy turns the plastic into a fine powder.

球磨机的机械能将塑料研磨成细粉。

He wished to be shown that changes in form caused evolution in force; that chemical or mechanical energy had by natural selection and minute changes, under uniform conditions, converted itself into thought.

他希望证明形式的变化会导致力量的进化。化学能或机械能通过自然选择和微小的变化，在相同的条件下，将自身转化思想。

But falling from a height of just two  meters has about the same mechanical energy as a bowling ball dropped from  a 7 story building.

但从两米的高度坠落所具有的机械能，大约相当于一个保龄球从七层楼高处落下时的能量。

And piezoelectric devices may become even more common, since electricity is in high demand and mechanical energy is abundant.

随着电力需求的高涨和机械能的丰富，压电设备可能会变得更加普及。

That vibration converts sound energy to mechanical energy, which muffles the echo that gets back to the bats.

霍普金：那种振动将声能转化机械能，从而减弱了返回蝙蝠的回声。

Motors take electrical energy – so, the current running through a coil of wire – and convert it into mechanical energy as the motor turns.

电机吸收电能——即流过线圈的电流——并在电机转动时将其转换机械能。

Our heart would use up less mechanical energy by reducing our pulse rate (the speed it pumps) and reducing blood pressure (the force it pumps).

我们的心脏会通过降低心率（泵血的速度）和降低血压（泵血的力量）来减少机械能的消耗。

DNA, bone, and silk all have this ability to turn mechanical energy into electrical.

DNA、骨骼和丝绸都具备将机械能转化电能的特性。