approach locking मीनिंग इन हिंदी

उदाहरण वाक्य

1. It simulates overlaps, approach locking, time-of-operation point locking, shunt routes, warner routes, call-on routes, and more.
2. ;Approach locking : " Electric locking effective while a train is approaching a signal that has been set for it to proceed and adapted to prevent manipulation of levers or devices that would endanger that train ."