在每一个阶段，钟表匠都引领着通向精确和精密的道路；他们成为微型化的大师，错误的探测器和纠正者，追求更新和更好。
At every stage, clockmakers led the way to accuracy and precision; they became masters of miniaturization, detectors and correctors of error, searchers for new and better.
其中，在具有所谓定位特征的一端，我们又一次将产品塑造为精确和精密的。
On the Positional end of the spectrum, we again have products of precision and fidelity.
为找出原因，研究人员用精密X射线分析仪测定了变成褐色颜料的精确化学成分。
To find out why, researchers used sophisticated X-ray analyses to determine the exact chemical composition of the paint as it browns.
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