搜索 - 科创

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想要学习意大利语的发音，我们应该先知道字母。意大利语的字母一共以下21个，分为元音5个与辅音16个。元音 A I U E O辅音 B C D F G H L M N P Q R S T V Z( ! ...

前言这篇文章我在翻译Richard Nakka's Experimental Rocketry Web Site关于Solid Rocket Motor Theory的网页的内容时，也加上了自己的整理...

本帖最后由 kknd 于 2013-11-7 13:24 编辑今天的一点想法，虎哥和各版主认为过于荒诞请丢进江湖科学。这篇东西很别扭，有逻辑厌烦倾向或感觉不适者请无视。重点都在后两段，对起...

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