?纳米磁体
纳米磁体
Marc Porter, at the University of Utah, has brought nanomagnets and GMR sensors together with nothing but a simple credit-card-style swipe.
ECONOMIST: Labs on a chip
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。