| Subject | Spanish | English |
| coal. | actividad sa RF so sp36 p11 | microseismic events |
| coal. | actividad sa RF so sp36 p11 | seismoacoustic events |
| coal. | actividad sa RF so sp36 p11 | seismoacoustic processes |
| coal. | actividad sa RF so sp36 p11 | microseismic activity |
| polit. | Aldeas Infantiles SOS Internacional | SOS Kinderdorf International |
| chem. | Au2SO3 | gold sulphide |
| chem. | Au2SO3 | Au2S3 |
| pack. | bolsa SOS | self-opening square bottom bag with gussets |
| pack. | bolsa SOS | SOS bag with gussets |
| pack. | bolsa SOS | gusseted bag |
| patents. | citación so pena de una multa | subpoena |
| environ. | concentración de SO2 del aire ambiente | sulphur dioxide concentration in ambient air |
| environ. | concentración de SO2 del aire ambiente | sulfur dioxide concentration in ambient air |
| environ. | concentración de SO2 del aire ambiente | SO2 concentration in ambient air |
| chem. | CoSO4.NH42SO4.6H2O | CoSO4.NH42SO4.6H2O |
| chem. | CoSO4.NH42SO4.6H2O | ammonium cobalt sulphate |
| med. | cromotest SOS | SOS chromotest |
| environ., chem. | detección del SO2 por fluorescencia UV | ultra violet fluorescence sulfur dioxide analysis |
| environ., chem. | detección del SO2 por fluorescencia UV | ultra violet fluorescence sulphur dioxide analysis |
| environ., chem. | detección del SO2 por fluorescencia UV | UV fluorescence sulphur dioxide analysis |
| environ., chem. | detección del SO2 por fluorescencia UV | UV fluorescence sulfur dioxide analysis |
| environ., chem. | detección del SO2 por fluorescencia UV | UV fluorescence SO2 analysis |
| patents. | emplazamiento so pena de una multa | subpoena |
| el. | encapsulado SO | small outline |
| chem. | FeSO4.NH42SO4.6H2O | Mohr's salt |
| chem. | FeSO4.NH42SO4.6H2O | ferrous ammonium sulphate |
| chem. | FeSO4.NH42SO4.6H2O | FeSO4.NH42SO4.6H2O |
| chem. | FeSO4.NH42SO4.6H2O | ammonium ferrous sulphate |
| comp., MS | Gestor de arranque del SO Windows | Windows OS Loader (A Boot Configuration Data (BCD) application object) |
| chem. | H2SO5 | permonosulphuric acid |
| chem. | H2SO5 | Caro's acid |
| comp., MS | imagen de SO personalizada | custom OS image (The user-customized virtual hard disks (VHDs) that define the operating environment hosted by the VM role) |
| comp., MS | llamada SOS | emergency (A telephone number that connects to a country or region's emergency system (for example, police and fire department)) |
| comp., MS | llamada SOS | emergency call (A call made to an emergency number) |
| environ., chem. | medición del SO2 por fluorescencia UV | UV fluorescence sulfur dioxide analysis |
| environ., chem. | medición del SO2 por fluorescencia UV | UV fluorescence sulphur dioxide analysis |
| environ., chem. | medición del SO2 por fluorescencia UV | ultra violet fluorescence sulphur dioxide analysis |
| environ., chem. | medición del SO2 por fluorescencia UV | ultra violet fluorescence sulfur dioxide analysis |
| environ., chem. | medición del SO2 por fluorescencia UV | UV fluorescence SO2 analysis |
| environ., chem. | método de medición del SO2 | pH measurement method |
| comp., MS | módulo de memoria SO-DIMM | small outline dual inline memory module (A smaller version of a DIMM used in laptops) |
| chem. | NiSO4.NH42SO4.6H2O | NiSO4.NH42SO4.6H2O |
| chem. | NiSO4.NH42SO4.6H2O | ammonium nickel sulphate |
| commun., construct. | poste SOS | emergency telephone |
| patents. | registro de obtenciones vegetativas so protección | plant variety protection register |
| patents. | registro de variedades vegetativas so protección | plant variety protection register |
| med. | regulón de operones SOS | SOS regulator |
| med. | regulón de operones SOS | SOS system |
| med. | regulón de operones SOS | SOS genes |
| med. | sistema SOS de reparación | SOS repair system |
| chem. | SO3 | sulphuric anhydride |
| chem. | SO3 | sulphur trioxide |
| chem. | SO2 | sulphur dioxid |
| chem. | SO4Cu.5H2O | cupric sulphate |
| chem. | SO4Cu.5H2O | CuSO4.5H2O |
| industr., construct., chem. | SO4Hg2 | Hg2SO4 |
| industr., construct., chem. | SO4Hg2 | mercurous sulphate |
| chem. | SO4Hg | mercuric sulphate |
| industr., construct., chem. | SO4Hg.2HgO | basic mercurous sulphate |
| industr., construct., chem. | SO4Hg.2HgO | HgSO4.2HgO |
| comp., MS | SO invitado | guest OS (The operating system running on a virtual machine) |
| gen. | so oliento | slumberous |
| gen. | so oliento | slumberously |
| gen. | so oliento | drowsy |
| industr., construct., chem. | SO4Pb | neutral lead sulphate |
| industr., construct., chem. | SO4Pb | PbSO4 |
| patents. | so pena de inadmisibilidad de las observaciones | on pain of inadmissibility of the comments |
| patents. | so pena de multa | on penalty |
| patents. | so pena de multa | under penalty |
| patents. | so pena de multa | on pain of a fine |
| chem. | SO4UO2.3H2O | uranyl sulphate |
| chem. | SO4UO2.3H2O | UO2SO4.3H2O |