„STREL-PROM d.o.o.
...
- E enostopenjsko gonilo / one-stage gear / Einstufengetriebe / jednostepeni reduktor
- D dvostopno gonilo / two-stage gear / Zweistufengetriebe / dvostepeni reduktor
- T trostopno gonilo / three-stage gear / Dreistufengetriebe / trostepeni reduktor
- S sˇ tiristopno gonilo / four stage gear / Vierstufengetriebe / cˇ etverostepeni reduktor
- D – T dvojno gonilo (kombinacija dvostopnega in trostopnega gonila) / double gearing (combination of a two- and threestage gear) / doppeltes Getriebe (Kombination eines Zwei- und Dreistufengetriebes) / dupli reduktor (kombinacija dvostepenog i trostepenog reduktora)
- T – T dvojno gonilo (kombinacija trostopnega in trostopnega gonila) / double gearing (combination of a three- and three stage gear) / doppeltes Getriebe (Kombination eines Drei- und Dreistufengetriebes) / dupli reduktor (kombinacija trostepenog i trostepenog reduktora)“
( http://www.strel-prom.hr/katalogStrojna.pdf )


“This is a two stage gear box having input shaft horizontal and output shaft (having the flange coupling) vertically upward. The 1st stage is of bevel gearing and 2nd stages is of helical gearing.”
( http://engineering.indiabizclub.com/catalog/117404~e mill ge... )

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Note added at 1 hr (2007-11-08 00:28:26 GMT)
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ili: two-stage (drive) reduction gearbox

Reduction gearbox:
A gearbox located at the wheels, which reduces the drive speed and may also increase ground clearance; often found on 4WD off-road vehicles.
( http://www.motorera.com/dictionary/RE.HTM )