1. The ergonomist conducted a study to optimize the design of the new office chairs.
人机工效学家进行了一项研究，以优化新办公椅的设计。
2. As an ergonomist, her job is to analyze and improve the ergonomic factors in work environments.
作为一名人机工效学家，她的工作是分析和改善工作环境中的人机工效因素。