| Subject | English | German |
| construct. | effective buckling length | reduzierte, freie Knicklänge (of column) |
| радиоакт. | effective counter tube length | effektive Zählrohrlänge |
| el. | effective drift length | effektive Driftlänge |
| phys. | effective focal length | effektive Brennweite |
| opt. | effective focal length | Äquivalentbrennweite |
| el. | effective gap length | effektive Spaltbreite |
| antenn. | effective length of an antenna | effektive Höhe einer Antenne |
| med. | effective length | Ist-Länge |
| construct. | effective length | effektive Strebenlänge (Statik) |
| радиоакт. | effective length | effektive Länge (of a scintillator) |
| tech. | effective length | Nutzlänge |
| mater.sc., met. | effective length | Knicklaenge |
| construct. | effective length | reduzierte Länge |
| stat. | effective length | Ersatzlänge |
| stat. | effective length | Knicklänge |
| gen. | effective length | wirksame Länge |
| construct. | effective length factor | Knicklängenfaktor |
| build.struct. | effective length factor | Koeffizient der rechnerischen Länge |
| construct. | effective length factor | Knicklängenbeiwert |
| chem. | effective length of a screw | wirksame Schneckenlänge |
| chem. | effective length of a screw | geschnittene Schneckenlänge |
| transp., construct. | effective length of strut | effektive Strebenlänge |
| el. | effective length of the aerial | wirksame Antennenlänge |
| el. | effective length of the antenna | wirksame Antennenlänge |
| met. | effective length of the magnetic circuit | magnetische Weglaenge des Kreises |
| met. | effective length of the magnetic circuit | magnetische Eisenweglaenge |
| industr., construct., chem. | effective length of weld | wirksame Nahtlaenge |
| tech., industr., construct. | effective pile length | Florlänge |
| el., mech. | effective press-in length | effektive Einpresslänge |
| el. | effective propagation path length | effektive Weglänge |
| nucl.phys., OHS | effective relaxation length | effektive Relaxationslänge |
| gen. | effective relaxation length | effektive Relaxationslaenge |
| construct. | effective track length | Gleisnutzlänge |
| construct. | effective unsupported length | of columns freie Knicklänge |
| el., mech. | effective wrapping length | effektive Wickellänge |
| textile | fiber effective length | effektive Faserlänge |
| tech., industr., construct. | length of effective pile | Florlänge |
