求翻译：为有效地帮助铁道工程技术管理人员进行工程工期估算，合理调度和控制各子工程的施工进度，运用Graph结构中的AOE网，分析工期估算算法，实现计算机辅助管理，对科学管理铁道工程具有重要意义。是什么意思？

In order to effectively help the railway engineering and technical management personnel of the construction period is estimated that a reasonable schedule and control the progress of each sub-project construction, the use of Graph structure in the AOE network, schedule estimation algorithm analysis,

To effectively help railroad engineering and technical personnel in the Administration estimated duration works, rational management and control of the sons of works in progress of the works, the use of AOE Graph structure analysis, Internet 2006/4 estimation algorithms, computer-assisted management

For helps the railway engineering technical management personnel to carry on the project time limit for a project estimate effectively, dispatches and controls each sub-project reasonably the construction progress, utilizes Graph in the structure the AOE net, the analysis time limit for a project es

To effectively assist railway engineering technical management personnel with engineering duration estimation, reasonable scheduling and control of engineering construction progress, using Graph structure in the AOE network analysis the duration estimation algorithm and realization of computer aided

For helps the railway engineering technical management personnel to carry on the project time limit for a project estimate effectively, dispatches and controls each sub-project reasonably the construction progress, utilizes Graph in the structure the AOE net, the analysis time limit for a project es