- The high gear ratio means the lower is the reduction between the engine and the road wheels. Conversely the lower the gear ratio means the greater is the reduction between the engine and road wheels. The top gearbox ratio is 1:1 when the gearbox input shaft connects directly with the gearbox output shaft; in this case, it calls direct drive. Example: - Most gearboxes have an over drive shift.
couplet - a stanza consisting of two successive lines of verse; usually rhymed. line of poetry, line of verse - a single line of words in a poem. closed couplet - a rhymed couplet that forms a complete syntactic unit. heroic couplet - a couplet consisting of two rhymed lines of iambic pentameter and written in an elevated style. stanza - a fixed number of lines of verse forming a unit of a poem.
pair. 1. 'a pair of'. A pair of things are two things of the same size and shape that are used together, such as shoes. Someone has dropped a pair of gloves. He bought a pair of hiking boots. When you use a pair of like this, you can use either a singular or a plural form of a verb.. referring to two people as a 'couple'. A couple consists of two people who have a romantic or sexual relationship, for example a husband and wife or boyfriend and girlfriend. In Venice we met a South African couple. Married couples will get tax benefits.