The status and the range of the cold formed steel's application in building, as well as some technique problems on the use of the cold formed sheet steel are expatiated.
阐述了压型钢板在建筑工程中的应用现状、应用范围及其在不同应用中需要注意的一些技术问题。
The paper introduces the design and application of a 3-dimensional notching die for formed sheet metal parts. The special design of components is also briefly introduced.
介绍了成形后板金件立体侧向切口模具的设计与应用，并对其零部件的特殊结构作了一些简单介绍。
Nanotechnologists could link DNA “tiles” into a sheet, or fold a long strand of DNA back on itself again and again until it formed a flat surface.
纳米技术学家们能够将DNA“砖块”连成一大片，或者将一条长链的DNA反复折叠以形成一个平整的表面。
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