two-speed en · ADJ
Meanings
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(not-comparable) Having two different speed settings.
a two-speed transmission
The two-speed exhausters are mounted one in each nose-end compartment and create vacuum for operating the train brakes.
1958 June 14, “Main-Line Diesel-Electric Locomotives for the Eastern Region”, in Railway Magazine, page 394:
Relateds
twelve-speed · single-speed bicycle · four-speed · two-speed crossword · ten-speed