transcription, транскрипция: [ noun ]
Date: circa 1890
1. : a place for scientific experimentation or testing (as of vehicles or weapons)
2. : a place where something is developed or tried out
PROVING GROUND
Meaning of PROVING GROUND in English
Merriam-Webster's Collegiate English vocabulary. Энциклопедический словарь английского языка Merriam Webster. 2003