单词：ph unit
pH单位, pH单位{酸硷度单位}
单词：ph unit 相关文章
Russia says it wants legal guarantees from the United States that a proposed missile defense shield for Europe will not threaten Russian security. Deputy Foreign Minister Sergei Ryabkov said Monday that Moscow has been disappointed by Washington's re
发表于:2019-02-05 / 阅读(62) / 评论(0)
英语新闻
英语新闻
A man of the state of Chu had a spear and a shield for sale．Hew as loud in praises of his shield．My shield is so strong that nothing can pierce it through． He also sang praises of his spear．My spear is so sharp that it can pierce through anyt
发表于:2019-02-05 / 阅读(68) / 评论(0)
趣味英语
趣味英语