They were able to measure the speed and direction of vehicles from ground vibrations.

这些节点可以从地面的振动测量出车辆的速度和方向。

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The ground vibrations were calculated to analyze the influences of elastic modulus of soils and the burial depth of tunnels.

计算了列车引起的地面振动，以分析隧道地基弹性模量和隧道埋深对地面振动响应的影响。

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Worries about the impacts on their precision instruments from Metro induced ground vibrations have consequently arisen because of the valuableness.

因此，地铁引起的地面振动及其隔振措施已成为重要的研究课题之一。

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Competitors may not dig worms from the ground but must use vibrations to call forth the mini-beasts.

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But, according to researchers who have been meeting in Chicago at a symposium of the Society for Integrative and Comparative Biology, this anthropocentric approach has meant that interactions via vibrations of the ground (a means of communication known as seismic signalling) have been almost entirely overlooked.

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When a horse is galloping, its hooves hit the ground at about 15kph, and this causes damaging vibrations in the animal's legs.

ECONOMIST: Veterinary technology