peça extraviada; peça perdida; componente solto
1. A component, piece, or fragment that has become separated from its original assembly or location
The mechanic found a stray part under the engine that didn't belong to any system.
O mecânico encontrou uma peça extraviada sob o motor que não pertencia a nenhum sistema.
2. An unaccounted or unidentified component in a mechanical or electronic device
After disassembly, there was a stray part left on the workbench.
Após a desmontagem, havia uma peça perdida deixada na bancada de trabalho.
3. A loose or detached piece that has wandered from its proper place
The technician carefully catalogued each stray part before reassembly.
O técnico catalogou cuidadosamente cada componente solto antes da remontagem.
This term is commonly used in automotive repair shops, manufacturing facilities, and electronics repair contexts in both Brazil and the USA. In Brazilian Portuguese, 'peça extraviada' is the standard terminology used in official documentation and repair reports. The phrase reflects the practical challenges of working with complex mechanical and electronic systems where small components can easily be misplaced or separated.
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