1. Determine the working place: First, you need to determine your own railway unit, which can be determined by looking at the work permit, salary slip or communicating with colleagues. Railway units include railway bureaus, railway companies and railway engineering bureaus.

2. Fill in the company name: after the company is confirmed, the full name of the company needs to be filled in. This usually includes keywords such as "China Railway" and the abbreviation or full name of the unit.

3. Fill in the department or post: after filling in the name of the unit, you need to indicate your own department or post. If you work on a train, such as a conductor, you can fill in "passenger section conductor" or "passenger department conductor". If you work in other departments, such as technology, safety, equipment and other departments, you also need to fill in the corresponding job name.

4. Confirm the filling content: after filling in, you need to check whether the filling content is accurate again. In case of doubt or uncertainty, please consult colleagues or superiors for confirmation.