The structure and operation of the ring gasket used in the high pressure flange seal were briefly stated in this article.
概述了高压法兰透镜垫密封的结构和运行状况。
Specific to the contemporary visual communication,this paper put forward the"Lens-Mode"of city communication in optoelectronic media,and then probes into the question that how the presence of a city to people turn from here and now then to teletopia.
文章针对当代视觉传媒的特点,探讨了在公共场所中,直接在场如何让位于远程在场,由此提出光电子媒介下城市场所传播的"透镜模式"。