| Subject | Spanish | English |
| tech. | acanaladuras interiores helicoidales | helical splines |
| transp., mech.eng. | acoplamiento elástico por muelles helicoidales | helical-spring gear |
| transp., mech.eng. | acoplamiento elástico por muelles helicoidales | flexible helical-spring coupling |
| chem. | agitador helicoidal | helicoidal mixer |
| forestr. | ahoyadora helicoidal | plant hole auger |
| mech.eng. | aleta helicoidal | helical fin |
| mech.eng. | aleta helicoidal | strip fin |
| mech.eng. | aleta helicoidal | spiral fin |
| gen. | aleta helicoidal | two-start,helical'rip' |
| gen. | aleteadura helicoidal equiespaciada | multi-start helical finning |
| tech. | anillo helicoidal de pistón | coiled piston ring |
| el. | antena helicoidal | helix aerial |
| el. | antena helicoidal | helix antenna |
| el. | antena helicoidal | helical antenna |
| el. | antena helicoidal | helical aerial |
| el. | arranque de movimiento helicoidal | starter motor with a helicoidal motion |
| chem. | arrollamiento helicoidal con paso variable | variable helical winding |
| coal. | bajado helicoidal | spiral chute |
| tech. | barrena de tipo helicoidal | screw auger |
| transp. | barrena helicoidal | auger-type bit |
| coal. | barrena helicoidal | spiralled rod |
| coal. | barrena helicoidal | scrolled rod |
| agric., tech. | barrilete de brocas helicoidales | helical bit core barrel |
| mech.eng. | bomba de tornillos helicoidales | warm-type pump |
| mech.eng. | bomba de tornillos helicoidales | helicoidal gear pump |
| mech.eng. | bomba helicoidal | helical pump |
| agric. | bomba helicoidal | worm-type pump |
| agric. | bomba helicoidal | worm type pump |
| earth.sc., mech.eng. | bomba helicoidal con paleta | helical vane pump |
| agric., mech.eng. | brazo helicoidal | helical tine |
| tech. | broca helicoidal | twist drill |
| mech.eng. | cable helicoidal | spiral rope |
| transp., mech.eng. | caja de engranaje helicoidal | helical gearing |
| transp., mech.eng. | caja de engranaje helicoidal | helical gear box |
| food.ind. | calentador helicoidal | spiral heater |
| earth.sc. | campo helicoidal | helical field |
| agric. | canaleta helicoidal | helical fluting |
| agric. | cilindro helicoidal | helical shredding rotor |
| mater.sc., industr., construct. | circulacion helicoidal del aire | helicoid air circulation |
| agric. | clasificadora helicoidal | spiral-cone seed grader |
| agric. | clasificadora helicoidal | spiral segregator |
| agric. | clasificadora helicoidal | spiral-type seed cleaner |
| agric. | clasificadora helicoidal | spiral gravity separator |
| tech. | cojín de muelle o resorte helicoidal o en espiral | spiral spring cushion |
| tech., chem. | columna Cadiot de cinta helicoidal | Cadiot column with rotating band |
| mech.eng. | compresor helicoidal | screw compressor |
| commun., transp. | corredera helicoidal | screw log |
| commun., transp. | corredera helicoidal | patent log |
| meas.inst. | corredera helicoidal | taffrail log |
| agric. | cortaforrajes de cuchillas helicoidales | cylinder type chaff cutter |
| el. | cuadrete helicoidal | quad helix |
| mech.eng., construct. | cubo de corona helicoidal | worm wheel spider |
| mech.eng., construct. | cubo de corona helicoidal | worm wheel hub |
| agric. | cuchilla helicoidal | helical blade |
| agric., tech. | cuchilla helicoidal de cizalla | helical shear blade |
| agric. | cuerpo cilíndrico-helicoidal | semi-digger body |
| agric. | cuerpo cilíndrico-helicoidal | general purpose bottom |
| agric. | cuerpo con vertedera helicoidal | general purpose body |
| agric. | cuerpo con vertedera helicoidal | scotch plow bottom |
| agric. | cuerpo con vertedera helicoidal | auger-like bottom |
| agric. | cuerpo helicoidal | general purpose body |
| agric. | cuerpo helicoidal | scotch plow bottom |
| agric. | cuerpo helicoidal | auger-like bottom |
| agric. | cultivador de brazos helicoidales | helical-tine cultivator |
| mech.eng. | dentado doble-helicoidal | double helical teeth |
| mech.eng. | dentado helicoidal | helical gearing |
| transp., construct. | desarenador helicoidal | vortex tube sand trap |
| coal. | descenso helicoidal | spiral chute |
| coal. | descenso helicoidal | gravity spiral conveyor |
| agric., tech. | destoconador helicoidal | helical stump cutter |
| agric., construct. | destoconador helicoidal | helical stump ripper |
| tech. | destornillador helicoidal de trinquete | spiral ratchet screwdriver |
| industr., construct. | devanado helicoidal | helical winding |
| earth.sc. | devanado helicoidal de estabilización | helical stabilizing winding |
| mech.eng., construct. | diente de corona helicoidal | worm wheel teeth |
| agric., mech.eng. | diente helicoidal sentido vertical | helical tooth |
| met. | dislocación helicoidal | screw dislocation |
| met. | dislocación helicoidal | twist |
| met. | dislocación helicoidal | helical arrangement |
| chem. | dosificador helicoidal | wire-wound coating rod |
| chem. | dosificador helicoidal | wire-wound doctor |
| chem. | dosificador helicoidal | Mayer bar |
| mech.eng., construct. | eje de corona helicoidal | worm wheel shaft |
| tech. | eje de engranaje del piñón helicoidal | helical pinion gearshaft |
| tech. | eje del engranaje impulsor con dientes helicoidales | helical drive gear shaft |
| mech.eng. | eje helicoidal | helical shaft |
| tech. | eje posterior con transmisión de engranaje helicoidal | spiral bevel axle |
| met. | electrodo de alma compuesta de dos o más alambres helicoidales | stranded welding wire |
| met. | electrodo de alma compuesta de dos o más alambres helicoidales | stranded electrode |
| tech. | electrodos helicoidales | helicoid electrodes |
| mech.eng. | engranaje cilindrico helicoidal de ejes cruzados | helical parallel gear pair |
| mech.eng. | engranaje cilíndrico exterior helicoidal | external helical gear |
| mech.eng. | engranaje cilíndrico interior helicoidal | internal helical gear |
| transp., mech.eng. | engranaje cónico de dentado helicoidal | spiral bevel gear |
| tech. | engranaje cónico helicoidal | spiral bevel gear |
| mech.eng. | engranaje de dientes helicoidales | helical gearing |
| tech. | engranaje en helicoidal | spiral gear |
| tech. | engranaje helicoidal | screw gear |
| mech.eng., construct. | engranaje helicoidal | helical worm-gear |
| mech.eng. | engranaje helicoidal | worm drive |
| mech.eng. | engranaje helicoidal | worm gears |
| mech.eng. | engranaje helicoidal | spiral bevel gear |
| mech.eng. | engranaje helicoidal | helical bevel gear |
| mech.eng. | engranaje helicoidal | worm gearing |
| mech.eng. | engranaje helicoidal | worm and wormwheel |
| tech. | engranaje helicoidal | twist gear |
| tech. | engranaje helicoidal | worm gear (de tornillo sin fin) |
| transp., mech.eng. | engranaje helicoidal | helical gearing |
| transp., mech.eng. | engranaje helicoidal | helical gear box |
| tech. | engranaje helicoidal | screw wheel |
| tech. | engranaje helicoidal | helical gear |
| tech. | engranaje helicoidal | angular gear |
| mech.eng. | engranaje helicoidal con rueda globoide | cylindrical worm gears |
| mech.eng. | engranaje helicoidal con tornillo y rueda cilíndrica | non-enveloping type of worm gears |
| mech.eng. | engranaje helicoidal para ejes cruzados | crossed helical gear pair |
| forestr. | engrosamiento helicoidal | spiral thickening |
| tech. | escariador helicoidal | spiral reamer |
| tech. | espiral helicoidal | spiral |
| earth.sc., transp. | estela helicoidal contraída | spiral contracting wake |
| earth.sc. | estricción dinámica helicoidal | screw dynamic pinch |
| earth.sc. | estricción helicoidal | screw pinch |
| tech. | estrías helicoidales | helical splines |
| mech.eng. | evolvente esférica helicoidal | spherical involute helicoid |
| mech.eng. | evolvente helicoidal | involute helicoid |
| commun. | exploración helicoidal | helical scanning |
| chem. | extrusionadora con cinta de alimentación helicoidal | screw ribbon extruder |
| chem. | extrusionadora con cinta de alimentación helicoidal | helical ribbon extruder |
| light. | filamento en helicoidal | single-coil filament |
| textile | forma helicoidal | helicoidal shape |
| mech.eng. | fresa de dientes helicoidales | helical milling cutter |
| automat. | fresadora helicoidal | slabbing cutter |
| energ.ind. | gasómetro de guiado helicoidal | spirally guided gasholder |
| el. | grabación magnética con exploración helicoidal | helical-scan magnetic recording |
| el. | grabación magnética con exploración helicoidal | helical scan |
| chem., el. | guiado helicoidal | spiral guiding |
| chem., el. | guiado helicoidal | spiral guides |
| phys.sc. | inestabilidad de onda helicoidal | whistler wave instability |
| phys.sc. | inestabilidad de onda helicoidal | helicon wave instability |
| earth.sc. | inestabilidad helicoidal | helical instability |
| earth.sc. | inestabilidad helicoidal | positive column screw instability |
| earth.sc. | inestabilidad helicoidal | screw instability |
| earth.sc. | inestabilidad helicoidal | corkscrew instability |
| energ.ind. | intercambiador de calor helicoidal | spiral heat exchanger |
| transp., mater.sc. | laminado helicoidal | spiral wrapping |
| transp., mater.sc. | laminado helicoidal | welded metal strip winding |
| transp., mater.sc. | laminado helicoidal | helical forming |
| mech.eng., construct. | llanta de corona helicoidal | worm wheel rim |
| transp., mech.eng. | macho de ranuras helicoidales | spiral flute tap |
| commun., IT | magnetoscopio con exploración helicoidal | magnetic helical-scan recorder |
| video. | magnetoscopio de registro helicoidal | helical-scan videotape recorder |
| el. | magnetoscopio de registro helicoidal | helical video tape recorder |
| el. | magnetoscopio helicoidal | helical scan |
| chem. | mezclador helicoidal | helicoidal mixer |
| chem. | mezcladora horizontal con cinta helicoidal | ribbon mixer |
| chem. | mezcladora horizontal con cinta helicoidal | ribbon blender |
| industr., construct., tech. | muelle helicoidal | screw spring |
| mech.eng. | muelle helicoidal | spiral spring |
| industr., construct., tech. | muelle helicoidal | coil spring |
| industr., construct., tech. | muelle helicoidal | helical spring |
| mech.eng., construct. | máquina con engranaje helicoidal | helical geared machine |
| mech.eng., construct. | máquina con engranaje helicoidal doble | double helical geared machine |
| mech.eng. | máquina para aserrar con alambre helicoidal | helical-wire cutting machine |
| textile | ondulacion helicoidal | helical crimp |
| met. | ondulacion helicoidal | helical crimping |
| mech.eng. | pala helicoidal fija | fixed helicoidal blade |
| mech.eng. | par cónico de dientes helicoidales | spiral bevel gear |
| mech.eng. | par cónico de dientes helicoidales | helical bevel gear |
| mech.eng. | paso helicoidal | lead |
| construct. | pilote helicoidal de hormigón | concrete screw pile |
| el. | potenciómetro helicoidal | helical potentiometer |
| earth.sc., el. | potenciómetro helicoidal | helipot |
| met. | prensa de extrusión helicoidal | auger machine |
| food.ind. | prensa helicoidal | screw extruder |
| tech. | propulsión por accionamiento cónico helicoidal | spiral bevel drive |
| construct. | rampas de acceso helicoidales de hormigón pretensado | prestressed concrete helical ramps |
| earth.sc. | ranura helicoidal | helical groove |
| mech.eng. | ranuras helicoidales de engrase | pair of crossed grooves |
| mech.eng. | ranuras helicoidales de engrase | pair of helical grooves |
| mech.eng. | ranuras helicoidales de engrase | pair of helical oil grooves |
| mech.eng. | ranuras helicoidales de engrase | pair of spiral grooves |
| mech.eng. | ranuras helicoidales de engrase | spiral grooves |
| mech.eng. | ranuras helicoidales de engrase | spiral oil grooves |
| mech.eng. | ranuras helicoidales de engrase | pair of spiral oil grooves |
| mech.eng. | ranuras helicoidales de engrase | pair of crossed oil grooves |
| mech.eng. | ranuras helicoidales de engrase | crossed oil grooves |
| mech.eng. | ranuras helicoidales de engrase | helical grooves |
| mech.eng. | ranuras helicoidales de engrase | helical oil grooves |
| mech.eng. | ranuras helicoidales de engrase | crossed grooves |
| mech.eng. | reactor helicoidal | screw reactor |
| el. | receptor de exploración helicoidal | drum receiver |
| agric. | reja helicoidal de doble punta | twisted double pointed shovel |
| tech. | resorte en helicoidal | coil spring |
| industr., construct., tech. | resorte helicoidal | helical spring |
| industr., construct., tech. | resorte helicoidal | screw spring |
| industr., construct., tech. | resorte helicoidal | coil spring |
| mech.eng. | resorte helicoidal de flexión | tangentially loaded helical spring |
| mech.eng. | resorte helicoidal de flexión | torsion spring |
| mech.eng. | resorte helicoidal de flexión | coiled torsion spring |
| mech.eng. | resorte helicoidal de torsión | tension spring |
| mech.eng. | resorte helicoidal de torsión | compression spring |
| mech.eng. | resorte helicoidal de torsión | axially loaded helical spring |
| mech.eng. | resorte helicoidal toroidal | garter spring |
| mech.eng. | rosca helicoidal | helicoidal screw gear |
| mech.eng. | rotor de acero de palas helicoidales fijas | steel rotor with fixed helicoidal blades |
| mech.eng. | rotor de palas helicoidales | helical paddle spinner |
| mech.eng. | rueda cilíndrica con dentado helicoidal alternado | staggered-tooth double-helical gear |
| mech.eng. | rueda cilíndrica helicoidal de engranaje hiperbólico | spiral gear |
| mech.eng. | rueda cilíndrica helicoidal de engranaje hiperbólico | crossed helical gear |
| mech.eng. | rueda con dentado helicoidal | gear with helical teeth |
| mech.eng. | rueda con dentado helicoidal | gear with curved teeth |
| mech.eng. | rueda cónica helicoidal | spiral bevel gear with straight teeth |
| mech.eng. | rueda cónica helicoidal | spiral bevel gear |
| mech.eng. | rueda cónica helicoidal | skew bevel gear |
| transp. | rueda helicoidal | helical toothed wheel |
| mech.eng. | rueda helicoidal | worm wheel |
| mech.eng. | rueda helicoidal | helical gear |
| tech. | rueda helicoidal | screw wheel |
| mech.eng. | rueda helicoidal de engranaje paralelo | twisted spur gear |
| mech.eng. | rueda helicoidal de engranaje paralelo | parallel helical gear |
| chem. | secadero helicoidal | spiral dryer |
| chem. | secadero helicoidal | helical dryer |
| industr., construct. | seguir trayectos helicoidales | to run spirally |
| mun.plan., commun. | sistema de exploracion helicoidal con 2 cabezas rotativas | rotary two-head helical scan system |
| med. | TAC helicoidal | helical computerized tomography |
| med. | TAC helicoidal | helical computerised tomography |
| med. | TAC helicoidal | helical CT |
| coal., mech.eng. | Taladrado con barrenos helicoidales perforados para inyección de agua central. | drilling with ribbed drill rods pierced for central water injection |
| mech.eng. | taladro helicoidal | spiral drill |
| med. | TC helicoidal | helical computerized tomography |
| med. | TC helicoidal | helical computerised tomography |
| med. | TC helicoidal | helical CT |
| industr., construct. | tija de remontuar de cuadrado helicoidal | winding stem with helical square |
| industr., construct. | tija de remontuar de cuadrado helicoidal parte máquina | winding stem with helical square movement part |
| agric. | tobera de rayado helicoidal | swirl nozzle |
| industr. | tobogán helicoidal | chute |
| med. | tomografía axial computerizada helicoidal | helical computerized tomography |
| med. | tomografía axial computerizada helicoidal | helical computerised tomography |
| med. | tomografía axial computerizada helicoidal | helical CT |
| mech.eng. | tornillo helicoidal | helicoidal screw |
| mech.eng., construct. | transmisión por engranaje helicoidal | helical gear drive |
| el. | transmisor de exploración helicoidal | drum transmitter |
| mun.plan., environ. | transportador de tornillo helicoidal | spiral auger conveyor |
| mun.plan., environ. | transportador de tornillo helicoidal | screw conveyor |
| chem. | transportador helicoidal | worm conveyor |
| transp., construct. | transportador helicoidal | screw conveyor |
| chem. | transportador helicoidal | helical conveyor |
| agric. | transportador helicoidal | feed auger |
| chem. | tuberia helicoidal del recalentador | superheater coils |
| nat.sc. | tubo helicoidal | helix tube |
| transp., construct. | túnel helicoidal | helical tunnel |
| el. | ventilador helicoidal | axial flow fan |
| el. | ventilador helicoidal | propeller fan |
| el. | ventilador helicoidal | axial fan |
| nautic. | ángulo helicoidal | helical angle |
| transp. | ángulo helicoidal efectivo | effective helix angle |