The West-East Gas Transportation Pipeline (WEGTP) is a strategic project for the energy source transport, which is about 3900km long. The remote sensing techniq
Based on the corresponding theories of engineering thermodynamics and hydro-dynamics, a careful study is made of the characteristics of air flow in different du
In this article,the features of design and cionstruction of Qinhuangdao-Shenyang passenger special line in railroad foundation,tracks,and bridges are described