operator
1. Someone who operates something, such as a machine. A telephone operator, for example, originally operated a switchboard, which at one time was thought to be a highly complex machine. A
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科学参考收录了5291条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。