Femtotechnology is a hypothetical term used in reference to structuring of matter on a femtometer, which is 10?15 m. This is a smaller scale in comparison to nanotechnology and picotechnology which are 10?9 m and 10?12 m respectively.
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。