There has been an incredibly large investment in obtaining high-resolution stellar spectra for determining chemical abundances of stars. This information is crucial to answer fundamental questions in Astronomy by constraining the formation and evolution scenarios of the Milky Way as well as the stars and planets residing in it. We have just entered a new era, in which chemical abundances of FGK-type stars are being produced at industrial scales, where the observations, reduction, and analysis of the data are automatically performed by machines. Here we review the latest human efforts to assess the accuracy and precision of such industrial abundances by providing insights in the steps and uncertainties associated with the process of determining stellar abundances. To do so, we highlight key issues in the process of spectral analysis for abundance determination, with special effort in disentangling sources of uncertainties. We also provide a description of current and forthcoming spectroscopic surveys, focusing on their reported abundances and uncertainties. This allows us to identify which elements and spectral lines are best and why. Finally, we make a brief selection of main scientific questions the community is aiming to answer with abundances.

中文翻译：

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工业恒星丰度的准确度和精密度

在获得用于确定恒星化学丰度的高分辨率恒星光谱方面进行了巨大的投资。通过限制银河系的形成和演化场景以及驻留在其中的恒星和行星，这些信息对于回答天文学中的基本问题至关重要。我们刚刚进入了一个新时代，FGK 型恒星的化学丰度正在以工业规模生产，数据的观测、还原和分析由机器自动完成。在这里，我们通过提供与确定恒星丰度过程相关的步骤和不确定性的见解，回顾了人类为评估此类工业丰度的准确性和精确度所做的最新努力。为此，我们强调了丰度测定的光谱分析过程中的关键问题，并特别努力解开不确定性的来源。我们还提供了当前和即将进行的光谱调查的描述，重点是它们报告的丰度和不确定性。这使我们能够确定哪些元素和谱线是最好的以及为什么。最后，我们简要选择了社区旨在大量回答的主要科学问题。