Keeping track of the changes as they are made allows for a reconstruction of the record at a point in time and gives a full audit trail of a given record.
在发生更改时跟踪更改，可以及时重建记录，从而提供特定记录的完整审计轨迹。
2
Finally, the example of project management culture: the reconstruction project of the electrification in Beijing-Shanghai track line is introduced.