What are Rail lifting, Rail Lining, Rail diversion, Rail landing, Rail Tamping, Track bed ramming, Curve lining, Sleeper adjusting?

What are Rail lifting, Rail Lining, Rail diversion, Rail landing, Rail Tamping, Track bed ramming, Curve lining, Sleeper adjusting?

(1) Rail lifting: Lifting the rail sleeper to adjust the top surface of the rail to the required height.

(2) Rail Lining: Adjusting the direction of the track.
(3) Rail diversion: Adjusting the track gauge to the specified standard.
(4) Rail landing: Lowering the elevation of the top surface of the rail.
(5) Rail Tamping: Using a tamping machine, tamping hammer, or hand pick to compact the ballast under the rail sleeper after track laying.
(6) Track bed ramming: Using ramming machine to compact the rail seat, shoulder, and slope gravel.

(7) Curve lining: Restoring the correct smoothness of the curved track.

(Sleeper adjusting: Adjusting the displaced rail sleepers or those with uneven spacing or deviation from their original positions back to their specified locations.)