it was the practice
4.It was analyzed and discussed how to improve the software development process, bring quality control and quality assurance into effect, promote the efficiency and effect of software development process, produce high quality software product, according to the practice experience of TMIS engineering projects by Information Technology Center of Railway Ministry.
10.In this paper, by the accelerated corrosion methods of man-made climate and galvanostatic to corrode the bars, experiments were carried out to study the different structure behavior of corroded reinforced concrete beams, and it was learned that the condition of man-made climate was closer to practice than galvanostatic method.

