Meaning of TECHNICAL in English
1》 relating to a particular subject, art, or craft, or its techniques.
↘requiring special knowledge to be understood.
2》 involving or concerned with applied and industrial sciences.
↘relating to the operation of machines: a ~ fault.
3》 according to a strict application or interpretation of the law or rules.
■ noun chiefly N. Amer. a small truck with a machine gun mounted on the back.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004