单词:parametric amplifiers
参数放大器
单词:parametric amplifiers 相关文章
From VOA Learning English, this is Everyday Grammar. Imagine you are at a business meeting. You have just presented a plan to your business partners. They want to give suggestions for how to make your plan better. The conversation might sound like th
发表于:2019-01-02 / 阅读(50) / 评论(0)
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