In technology we're moving from a 20th century hierarchical top down view of industrial technology to a 21st century view of networks in which things like emergence are the key properties.
在技术领域，我们从20世纪的自顶而下的工业化技术，转向了21世纪的网络技术，在这个时代大量的新事物出现。
Utilizing surface active technology, expanded ammonium nitrate was prepared by treating industrial ammonium nitrate. The physical properties of expanded ammonium nitrate.
用表面活性技术对工业硝酸铵进行处理制得膨化硝酸铵，研究了膨化硝酸铵的各项物理性能。
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