footprint
1. The physical space something occupies, as in the footprint of a computer or a PBX. 2. The coverage area of a satellite or other radio transmitter system.
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。