超导相
Soon, physicists were cooking up ceramics that superconducted at around 90K. This may not sound all that balmy, but it is above 77K, the boiling point of nitrogen.
ECONOMIST: Inside story
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。