| Subject | English | Spanish |
| mech.eng., el. | calculation of efficiency from summation of losses | medida del rendimiento a partir de las pérdidas separadas |
| life.sc. | climatic summation value | valor climático acumulado |
| el.mot. | determination of efficiency from summation of losses | determinación del rendimiento mediante la suma de las pérdidas |
| stat., scient. | even summation | suma de números pares |
| math. | even summation | summa de números pares |
| stat. | Hardy summation method | método de Hardy de la suma |
| chem. | law of constant heat summation | ley de la constancia de la suma integral de calor |
| agric. | light summation | adición de luz |
| el. | loss-summation method | método por pérdidas separadas |
| stat. | moving-summation process | proceso de la medida móvil |
| math. | moving summation process | proceso de la suma móvil |
| IMF. | multicountry balance of payments summation | recapitulación multinacional de datos de balanza de pagos |
| econ., market. | multicountry balance of payments summations | recapitulación multinacional de datos de balanza de pagos |
| IT, scient. | subthreshold summation | suma de subumbral |
| CNC | summation action | acción totalizadora |
| IT, tech. | summation check | prueba de suma |
| IT, tech. | summation check | comprobación por suma |
| IT, tech. | summation check | verificación por suma |
| automat. | summation check | verificación totalizadora |
| transf. | summation current transformer | transformador de intensidad sumador |
| life.sc. | summation curve | curva masa |
| tech., el. | summation curve | curva de valores acumulados |
| soil. | summation curve | curva aditiva |
| meas.inst. | summation element | sumador |
| meas.inst. | summation element | rgano sumador |
| life.sc. | summation graph | curva de valores acumulados |
| life.sc. | summation graph | curva masa |
| el., meas.inst. | summation instrument | instrumento totalizador |
| meas.inst. | summation instrument | aparato totalizador |
| earth.sc., tech. | summation instrument totaliser | aparato totalizador |
| earth.sc., tech. | summation instrument totalizer | aparato totalizador |
| tech., el. | summation meter | contador totalizador |
| tech., el. | summation metering | contador totalizador |
| el. | summation panel | panel integrador |
| transp., avia., mater.sc. | summation point | punto de suma |
| tech. | summation sky cover | total de cielo cubierto |
| meas.inst. | summation telecounter | telecontador totalizador |
| PSP | summation time relay | relé temporizado con suma de tiempos |
| tech. | totalizer summation unit | unidad sumadora del totalizador |