单词:inorganic material technology
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This is the VOA Special English Agriculture Report. Mulch is material spread over soil. It protects against wind and rain damage. It can also limit weed growth. Finding materials for organic mulch can be easy. Small pieces of tree bark or cut up lea
Premier Li Keqiang says China should consider science and technology as a primary productive force. Scientific and technological innovation to a large extent determines the future of China's development strategy. In history, we have missed several te
VOA's Weekly Science and Technology Magazine Art Chimes 05 January 2010 MUSIC: Our World theme This week on a special edition of Our World, some of our favorite stories of the past year ... including a high-tech wrinkle to that humblest of building m
In January 2015, a fire in one of Russia's largest university libraries damaged more than 1 million historical documents, an incident which some media described as a cultural Chernobyl. 2015年1月,俄罗斯最大的大学图书馆之一发生了火灾
Dropping your smartphone when taking a selfie could soon be less risky, says specialist glass maker Corning. 专业玻璃制造商康宁日前表示,自拍的时候不慎掉落手机可能不再会碎屏了。 Shattered or cracked screens are the n
Over 40 billion ballpoint pens are made in China every year. Yet, the key materials and equipment are, for the most part, imported. Thus, most Chinese stationery companies are lingering at the low end of the industrial chain. Ding Zhangrong, presiden