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我的梦想是到月球旅行并说明理由写一篇英语作文When early man invented clothes, he probably wanted to keep warm. I am sure he never intended that
When early man invented clothes, he probably wanted to keep warm. I am sure he never intended that it should become as elaborate as it ha。
简单点说,碳素纤维就是一般的材料,而高强度和高弹性的就是在全碳素的基础上加强了的,比一般的碳素要好。 高强度碳素纤维(HighModulusGraphite) 。
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