| Subject | English | Portuguese |
| comp., MS, Braz. | accounts payable three-way invoice matching | conciliação tripla de notas fiscais (A practice of matching vendor invoice prices and product quantities to purchase orders and product receipts) |
| environ., mech.eng. | closed loop three-way catalytic converter | catalisador de três vias de ciclo fechado |
| environ., mech.eng. | closed loop three-way catalytic converter | catalisador de três vias com sonda lambda |
| transp., industr. | closed-loop three-way catalyst | convertedor catalítico de três vias |
| transp., environ. | closed-loop three-way catalytic converter | conversor catalítico de três vias em circuito fechado |
| environ., mech.eng. | open loop three-way catalytic converter | catalisador de três vias ciclo aberto |
| environ., mech.eng. | open-loop three-way catalyst | catalisador de três vias ciclo aberto |
| transp., mech.eng. | oxidation or three-way catalyst | catalisador de três vias |
| transp. | three divided highways within one right of way | estrada de 3 vias separadas |
| agric. | three-way bagging attachment | boca de ensacamento tripla |
| environ. | three-way catalyser | conversor catalítico de três vias |
| transp., mech.eng. | three-way catalyser | catalisador com três vias |
| environ. | three-way catalyser | catalisador de três vias |
| transp., industr. | three-way catalyst | convertedor catalítico de três vias |
| transp., mech.eng. | three-way catalytic converter | catalisador com três vias |
| environ. | three-way catalytic converter | catalisador de três vias |
| environ. | three-way catalytic converter | conversor catalítico de três vias |
| transp., industr. | three-way catalytic convertor | catalisador de três vias |
| mech.eng. | three-way cock | torneira de tres vias |
| mech.eng. | three-way cock | torneira com três saídas |
| transp., industr. | three-way converter | catalisador de três vias |
| mater.sc. | three-way corner | canto triplo |
| med. | three-way-cross hybrid | híbrido trilíneo |
| comp., MS | three-way handshake | handshake de três vias (The method for initializing a Transmission Control Protocol (TCP) session between two hosts on an Internet Protocol (IP) network. The three-way handshake synchronizes the sequence number and acknowledgment numbers of the two hosts establishing a connection, exchanges TCP window sizes, and exchanges other TCP options, such as the maximum segment size) |
| commun., IT | three-way internal conference call | conferência local a três |
| el. | three-way light switch | interruptor de três posições |
| comp., MS, Braz. | three-way matching policy | política de conciliação tripla (A matching policy that requires one or more vendor invoice prices to match with one or more purchase order prices and that requires one or more vendor invoice quantities to match with one or more product receipt quantities) |
| gen. | three-way partnership | parceria tripartida |
| mech.eng. | three-way restrictor | redutor de três vias |
| mech.eng. | three-way selector | seletor de três vias |
| el. | three-way speaker | altifalante de três vias |
| mech.eng. | three-way stopcock | torneira de tres vias |
| mech.eng. | three-way stopcock | torneira com três saídas |
| mech.eng. | three-way tap | torneira de tres vias |
| mech.eng. | three-way tap | torneira com três saídas |
| transp. | three-way tipping trailer | reboque tribasculante |
| transp. | three-way tipping trailer | reboque basculante nos três sentidos |
| nat.sc., agric. | three-way tipping 4-wheeled trailer | reboque tribasculante |
| gov. | three-way translation | tradução tripolar |
| earth.sc., mech.eng. | three-way valve | válvula proporcional de três vias |
| mech.eng. | three-way valve | torneira de tres vias |
| mech.eng. | three-way valve | torneira com três saídas |
| mech.eng. | truck designed to carry out three-way stacking | carro concebido para empilhar em três direções |