单词：phasing commutator
定相变换器
单词：phasing commutator 相关文章
The penny is costing the government a pretty penny these days. In fact, the US government lost over 50 million dollars last year in penny production. The culprit is the cost of the metal in the penny. However, contrary to common belief, the penny is
发表于:2018-12-28 / 阅读(203) / 评论(0)
轻松英文阅读
轻松英文阅读
Ozone layer（臭氧层） 'is no longer disappearing and will return to full strength by 2048', says UN report. The ozone layer is no longer disappearing and could be back to full strength by the middle of this century, UN scientists have confirmed（
发表于:2019-02-07 / 阅读(140) / 评论(0)
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