Could it be the vibration in the ground?

它们是感应到了地面的震动吗？

With lockdowns in place around the world, there are fewer vibrations in the Earth that are normally caused by highway traffic, trains, busses, people moving around going about their daily lives.

随着世界各地的封锁，地球上那些通速公路交通、火车、公共汽车、以及人们的日生活引起的震动减少了。

As the weight of the atom increases, the frequencies of the vibrations diminish.

原子的重量增加时，震动的频率减小。

And the reverberation results from the vibrations that linger when the tissues pull apart.

而回声则来源于组织分离时产生的振动。

You could feel it in the vibrations of the long steel hull.

我们从长形钢铁船壳的振动可以感觉出来。

If an obstacle is detected, the stick warns the user by vibration.

如果检测到障碍物，棍子通过振动告用户。

The crack in the earth is more than 50 feet wide in some places and 50 feet deep, and it reportedly followed heavy rains and some ground vibration last month in the Eastern African country of Kenya.

在一些地方，地球的裂缝超过50英尺宽，50英尺深，据报道，上个月在东非国家肯尼亚发生了强降雨和地震。

The floor's supported by ten massive pads. These are constructed from rubber, and so are able to absorb any vibrations from outside and prevent them from affecting the auditorium.

地面十张厚重的软垫支撑。这些软垫都是橡胶制成的，可以吸收来自外界的所有振动，防止它们影响礼堂内的活动。

It has a clever vibration isolation system built in, so astronauts' heavy footfall can't disturb the delicate science going on elsewhere on the ISS.

它内置了一个巧妙的隔振系统，航员沉重的脚步声不会干扰国际空间站其他地方正在进行的精密科学研究。

Being out on the ice when it sings the most is a very special experience. If the ice cracks close to you, you can feel like a wall of vibration from the sounds almost knocking you down.

站在冰湖上听它唱歌是非特别的经历。当裂缝靠近你时，振动声音就像一幅几乎倒在你身上的墙。

It's the sense of feel touch and in our case it's vibration.

它是局部可感知的触觉，在我们的表演中就是振动。

The pockets of trapped air in between the snowflakes actually weaken the vibrations and converts the sound into small amounts of heat.

在雪花之间空隙里的空气渐弱了声音的震动，并且把声音转换成热量。

She was delighted with the vibrations that she felt when the watch struck the hour.

她对手表报时时的震动感到兴。

Participants wore a haptic vest to feel these vibrations as if their own heartbeat, bringing us a step closer, imagining what it is like to be a tree.

参与者穿着触觉马甲，感受这些振动，就像感受自己的心跳一样，让我们更接近，想象成为一棵树的感觉。

There's just a little bit of a vibration there, which is pretty fascinating.

这里有一点震动，非有趣。

Wooden-box packaging and overall stuffing will protect our cargo from vibration and jarring.

木箱包装还有密实的填充会防止我们的货物的受震和开裂。

If explosives are used, vibrations will cause the roof of the mine to collapse.

如果用炸药爆破，震动会引起矿顶塌落。

They also pound their feet on the ground to create vibrations.

它们还会用脚踩踏地面来产生振动。

The answer's obvious, an infinite number of vibrations on the same string.

答案很明显，同一弦上有无数次振动。

Their head and jawbones capture vibrations and transmit them directly into the ear.

它们的头部和颌骨捕捉振动并将其直接传递到耳朵中。