trial number meaning in Hindi

Examples

1. Here is a description of a trial number in Taiwanese sign language.
2. :Here is one reference describing a trial number in Fijian, although they say it is " probably best described as paucal ".
3. Unfortunately for Gloster, the Carden engine had not had time for proper development and overheating and lubrication problems prevented the Gannet from flying at Lympne, though it was present, registered as " G-EBHU " and bearing Trials number " 7 ".