. . . "102960001"@en-us . "mainspring"^^ . "03712444-n"^^ . "103573917"@en-us . "0"^^ . . "mainspring"@en-us . "the most important spring in a mechanical device (especially a clock or watch); as it uncoils it drives the mechanism"@en-us . . . . . . . . "0"^^ . "103712444"^^ .