It was not until the 19th century, when magnetism was shown to be the product of electricity, that serious research into the nature of permanent magnetism began.
英
美
释义
直到19世纪证明了磁是电产生的那个时候,人们才开始对永久磁性的本质作认真的研究。
把海词放在桌面上,查词最方便
触屏版
|
电脑版
©2003 - 2024 海词词典(Dict.cn)
立即下载