急需翻译一下英文摘要

50 beginning of years in the last century, an invisible building revolution at quietly but rise, its source head is the CAD which applies a painting at the structure this software be develop.Along with the backlog of knowledge, CAD this software also rose quite a few time class, it is also gradual drive perfect.Along with the CAD extensive application, various different painting styles, paint techniques drive all people unintentionally the exhumation come out.Through the development for more than 20 years, CAD technique already the day attain mature with perfect, also got an extensive application in the meantime, almost seep through every trades, such as machine, molding tool, clothing, electronics, toy manufacturing and building...etc., at universal degree of manufacturing industry is outstanding, and have become the realistic productivity of business enterprise.

In the early 50 century, a revolution in the construction invisible quietly sky, and its source is applied to the