track adjustment meaning in Chinese

航道较正，轨道调整

You have 33 track miles to run , turn left now heading 020 for track adjustment and continue descend to 4000 feet
你还得走33海里航迹。左转现在航向020为航迹调整。
The railway track adjustment was planned to be carried out from 10 : 00 pm on wednesday to 1 : 30 am on thursday and the trains passing by were asked to slow down their speed to 45 kilometers per hour from 9 : 00 pm
当时周三22时至次日1时30分要进行铁路线路的调整，经过的列车从当日21时起施工范围内列车限速每小时45公里运行。
The railway track adjustment was planned to be carried out from 10 : 00 pm on wednesday to 1 : 30 am on thursday and the trains passing by were asked to slow down their speed to 45 kilometers per hour from 9 : 00 pm
轨道调整是计划在星期三晚上10点到星期四早上1点半之间执行，从周三晚上9点起，经过的火车必须将车速降低到45公里每小时。