There, the astronomer Jean Picard devised an impressively complicated method of triangulation involving quadrants, pendulum clocks, zenith sectors, and telescopes for observing the motions of the moons of Jupiter.

在那里，天文学家让·皮卡尔发明了一种极其复杂的三角测绘法，用上了扇形板、摆钟、天顶象限仪和天文望远镜用来观察土星卫星的运动。

Pendulum clocks, they don't keep very good time at sea because motion on the ocean messed with their swings and their metal parts were sensitive to changes in temperature and pressure.

摆钟在海上走时不太准，因为海上的起伏干扰了它们的摆动，并且其金属部件对温度和压力的变化很敏感。

The result was rapid progress in astronomy, physics and other fields, and new inventions from the pendulum clock to the steam engine--the prime mover of the Industrial Revolution.

其结果是天文学、物理学和其他领域的快速进步，以及从摆钟到蒸汽机（工业革命的原动力）的新发明。