单词：titanic iron (ilmenite)
单词：titanic iron (ilmenite) 相关文章
Words and Their Stories: Military Expressions 词汇典故：军事词汇 This is Phil Murray with WORDS AND THEIR STORIES, a program in Special English on the Voice of America. We tell about some common expressions in American English. 这里是美国
2012年VOA慢速英语(十)月
This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. In the spring of 1912 an iceberg in the Atlantic took down the Titanic. Now, some humble bacteria are trying to finish the job. Scientists analyzing rust f
Scientific American(十二)月
Like nebulae which spawn stars, it is made of gas and dust. But that's where most similarities end. For Alex Filippenko, it represents an intriguing industrial zone within our galaxy where the elements from which our world is made or manufactured. Wh
自然百科2011年
Like nebulae which spawn stars, it is made of gas and dust. But that's where most similarities end. For Alex Filippenko, it represents an intriguing industrial zone within our galaxy where the elements from which our world is made or manufactured. Wh
自然百科2011年
We are at a foundry here, and they are pouring molten iron from all machinery. And they are going to make parts for new machines out of that iron, so they are recycling yet, but all that iron was created and ejected into the cosmos by gigantic stars
自然百科2011年
Winding between Zhangjiajie's peaks, crystal clear mountain streams are home to what is perhaps China's strangest creature. This bizarre animal is a type of newt, the Chinese giant salamander. In China, it is known as the baby fish because when distr
英语听力：文化博览2008年