BEFORE the end of next year the Internet will collapse, predicted Bob Metcalfe, a noted network engineer now turned venture capitalist, in a magazine column in 1995.
The wall and the wall column are connected with galvanized steel, which will not cause the foundation to sink, the wall crack and the collapse phenomenon.
墙体与墙柱用镀锌槽型钢连接,不会因大风大雨造成基础下沉,墙体开裂,倾覆倒垮征象发生。
3
D seismic prospecting is more and mo re extensively used in many aspectss uch as small faults , small structures and collapsecolumn in mining areas of coal mine.