The manufacture of relatively small articles (toasters as opposed to girders), using small amounts of raw materials. In consequence, the material index is low, and such industries are more footloose than heavy industries.
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。