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Useful english dictionary. 2012.
variable gearing — noun see variable gear … Useful english dictionary
Variable valve timing — Variable valve timing, or VVT, is a generic term for an automobile piston engine technology. VVT allows the lift or duration or timing (some or all) of the intake or exhaust valves (or both) to be changed while the engine is in operation. Two… … Wikipedia
Variable compression ratio — is the technology to adjust internal combustion engine cylinder compression ratios on the fly. This is done to increase fuel efficiency while under varying loads. Higher loads require lower ratios to be more efficient and vice versa. Variable… … Wikipedia
Gear — For the gear like device used to drive a roller chain, see Sprocket. This article is about mechanical gears. For other uses, see Gear (disambiguation). Two meshing gears transmitting rotational motion. Note that the smaller gear is rotating… … Wikipedia
Gear stick — A gear stick (also known as gearstick, gear lever, selection lever, shift stick and gear shifter) is the lever used to change gear in a vehicle, such as an automobile, with manual transmission or several common forms of automatic transmission.… … Wikipedia
Variable-sweep wing — A Variable sweep wing is an aeroplane wing that may be swept back and then returned to its original position during flight. It allows the aircraft s planform to be modified in flight, and is therefore an example of variable geometry.Typically, a… … Wikipedia
Variable capacitor — Rotary variable capacitor A variable capacitor (also known as a variable air condenser ) is a capacitor whose capacitance may be intentionally and repeatedly changed mechanically or electronically. Variable capacitors are often used in L/C… … Wikipedia
variable — adj. & n. adj. 1 a that can be varied or adapted (a rod of variable length; the pressure is variable). b (of a gear) designed to give varying speeds. 2 apt to vary; not constant; unsteady (a variable mood; variable fortunes). 3 Math. (of a… … Useful english dictionary
variable — adjective 1》 not consistent or having a fixed pattern; liable to vary. ↘Mathematics (of a quantity) able to assume different numerical values. ↘Botany & Zoology (of a species) liable to deviate from the typical colour or form, or to occur … English new terms dictionary
variable-speed gear — noun : change gear … Useful english dictionary
