Researchers found tools like hammer stones and piledrivers made of stalagmites.

研究人员发现了由石笋制成锤子石和打桩机等工具。

His mind may turn to the stock market or he may become fascinated by the operation of a pile driver on his way to work.

在去班路，他可能会想着股市或对路边打桩机着迷。

In this piece, you further that use of samplers to incorporate car horns, pile drivers, alarms, all the noise and chaos of the city, but again married with music for an ensemble.

在部作品中， 你进一步运用采器，融入了汽车喇叭声、打桩机声、警报声， 以及城市所有喧嚣与混乱，但同与为乐团创作音乐相结合。

Bank Street stories might depict a jackhammer or a train going by and then ask the child to imitate those sounds, but also any other sounds they might feel like imitating.

Bank Street故事可能会描绘一个打桩机或一辆经过火车，然后让孩子模仿那声音，也可以模仿他们想模仿任何其他声音。

Normally, this would involve the piling rig, working from above.

通常 项工作需要打桩机，从地进行。

But with an economic crisis to tackle and what I suspected might be a limited window to get my agenda through a Democratically controlled Congress, I was convinced that his pile-driver style was exactly what I needed.

但是，由于经济危机需要解决，而且我怀疑我议程通过民主党控制国会机会可能很有限，我确信他打桩机风格正是我所需要。