| Subject | English | Spanish |
| chem. | arsenic tri-iodide | AsI3 |
| food.ind. | dodecyl 3, 4, 5-tri-hydroxybenzoate | galato de laurilo |
| food.ind. | dodecyl 3, 4, 5-tri-hydroxybenzoate | galato de dodecilo |
| food.ind. | dodecyl 3, 4, 5-tri-hydroxybenzoate | éster dodecílico del ácido gálico |
| food.ind. | dodecyl 3, 4, 5-tri-hydroxybenzoate | éster n-dodecílico del ácido 3,4,5-trihidroxibenzoico |
| food.ind. | dodecyl 3, 4, 5-tri-hydroxybenzoate | éster laurílico del ácido 3,4,5-trihidroxibenzoico |
| food.ind. | dodecyl 3, 4, 5-tri-hydroxybenzoate | E 312 |
| auto. | tri-coat | tres etapas |
| auto. | tri-coat | tres capas |
| chem. | tri potassium orthophosphate | fosfato tripotásico |
| antenn. | tri-rod coupler | acoplador de triple barra |
| chem. | tri sodium orthophosphate | fosfato trisódico |
| biol. | tri-species hybrid | híbrido terciario |
| piez. | tri-state output | salida de triple estado |
| pack. | tri-walled corrugated board | cartón ondulado triple acanalado |
| pack. | tri-walled corrugated board | cartón ondulado triple (de tres capas) |
| pack. | tri-walled corrugated board | cartón ondulado triple cara |
| nat.sc., chem. | tris-acetate-electrophoresis | triacetato para electroforesis |
| textile | tris-aziridinyl phosphine oxide | APO |
| chem. | tris-aziridinyl phosphinoxide | óxido de tris-aziridinilfosfina |
| UN, chem. | Tris phosphate 2,3-dibromopropyl | fosfato de tris (2,3-dibromopropilo) |
| chem. | tris 2-chloroethyl phosphate | fosfato de tri2-cloroetilo |
| chem. | tris 2,3 dibromopropyl phosphate | fosfato de tris2,3-dibromopropilo |