Training by working under the supervision of an experienced worker. This is contrasted with training by formal courses of instruction, provided by the employer or an outside body. Many employers make use of both training methods.
科学参考收录了60776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。