n.

distance travelled per unit time

同義詞：velocity

a rate (usually rapid) at which something happens

"the project advanced with gratifying speed"

同義詞：swiftnessfastness

changing location rapidly

同義詞：speedinghurrying

the ratio of the focal length to the diameter of a (camera) lens system

同義詞：focal ratiof numberstop number

a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression

同義詞：amphetaminepep pillupper

How a cockpit remembers its speeds.
Wave speeds and attenuation of elastic waves in material containing cracks
Routing lookups in hardware at memory access speeds
Negative autoregulation speeds the response times of transcription networks.
Reduced drag coefficient for high wind speeds in tropical cyclones
A general theory of heat conduction with finite wave speeds
An Arbitrary Lagrangian-Eulerian Computing Method for All Flow Speeds
Laminar Heat Transfer Over Blunt-Nosed Bodies at Hypersonic Flight Speeds
Interactions between motoneurones and muscles in respect of the characteristic speeds of their responses
Molecule formation and infrared emission in fast interstellar shocks. II - Dissociation speeds for interstellar shock waves