A software for the management of computer aided design(CAD) drawings was developed. It can be used to classify and register information including geometric feat
The diaphragm of steam turbine is one of the main parts of the passage unit for air flowing and the diaphragm of steam turbine is generally made by welding, but
Xinjiang folk art patterns and designs are the art treasures of Chinese cultural treasure-house as well as the precious humanistic resources of Western China. I