What does it mean that parking in reverse is not allowed to stop midway?

[LunaDella]

As long as the electronic invigilation system detects that the wheels are stationary, it will be regarded as stopping midway, and stopping for more than two seconds will result in a deduction of 5 points. The following are specific instructions about parking in reverse: 1. Definition: Parking in reverse is a mandatory item for obtaining a small car driver's license after 2013. It tests the driver's ability to operate the car in the designated area. 2. Examination evaluation criteria: Not following the specified route and sequence will result in a direct deduction of 100 points; the car body crossing the line will result in a deduction of 100 points; failing to park in reverse will result in a deduction of 100 points; not having both front wheels cross the control line before reversing will result in a deduction of 100 points; exceeding the 210-second time limit for the task will result in a deduction of 100 points; stopping for more than 2 seconds midway will result in a deduction of 5 points each time.