单词：anti-detonant
[网络] 防爆燃剂
单词：anti-detonant 相关文章
SCIENCE IN THE NEWS - Growing Plants Inside the Box CHRISTOPHER CRUISE: This is SCIENCE IN THE NEWS, in VOA Special English. Today, we tell about an American farmer and an unusual device he developed. For twenty years, people around the world have be
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From VOA Learning English, this is Science in the News. Today, we tell about an American farmer and an unusual device he developed. For 20 years, people around the world have been buying his invention. Blake Whisenant and his family are farmers. They
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