他的公司则采用一对人造肌肉来搬动重物或产生震动，这种技术使控制变得大为精细。
By using a pair of artificial muscles to move a weight and generate tremors, his firm's technology provides far more subtle control.
过去几年里许多不同的技术层出不穷，大部分是同过皮肤上的电极从外部对肌肉施加微小的电震动，使肌肉收缩。
Many different techniques have emerged over the years, most of which involve applying small jolts of electricity externally to muscles, via electrodes on the skin, to make them contract.
科学家们还研究了食人鱼是怎样使用肌肉来震动它们的鱼鳔从而发出声音的。
The scientists studied how the fish used muscles to vibrate their swim bladder, creating the sounds.
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