| characterizing or showing skill in or specialized knowledge of applied arts and sciences |
| of or relating to technique or proficiency in a practical skill |
| of or relating to a practical subject that is organized according to scientific principles |
| according to strict interpretation of the law or set of rules |
| relating to or concerned with machinery or tools |
| of or relating to or requiring special knowledge to be understood |
| resulting from or dependent on market factors rather than fundamental economic considerations |