The phrase "a long time interval" is correct and usable in written English.
It can be used when referring to a significant duration of time between events or occurrences.
Example: "There was a long time interval between the two meetings, which allowed for thorough preparation."
Alternatives: "an extended period" or "a lengthy duration".
Then there's whole life, which gives you insurance over a long time interval and builds cash value over the years.
A cue stimulus prompted subjects to direct their attention to the stimulus stream either shortly before the masked prime (short cue interval) or a long time interval before.
We suggest a methodology for a quantitative description of the behavior of a dynamic system for a long time interval in a compressed, generalized form.
To measure the accuracy of the base frequencies, we used a deterministic, ascending sequencer with a long time interval to output sound wave in PWM signal and used an oscilloscope to measure the wave frequencies.
These expressions are used in the development of a new method for estimating a level distribution over a long time interval on the basis of statistics obtained over a relatively short time interval, for linear vibratory systems.
In urban areas, a large amount of natural stable radar reflectors exists, such as buildings and engineering structures, at which radar signals can remain coherent during a long time interval.
This paper emphasizes on the structural modeling and performance assessment of bridge girders made of UHPC considering the major improvements in terms of structural performance, durability, environmental impacts, and cost-effectiveness in a long-time interval.
One simple test consists of plotting the normalized affinity versus the normalized occupancy for each position on the DNA after the simulator is run for a long-time interval.
It is also possible to produce a I curve whose values are within a narrow range for a relatively long time interval and result thus in a relatively large R∞.
A trillionth of a second is indeed a relatively long time interval (Letters, 6 July) when compared with the universally accepted shortest time interval: the gap between New York traffic lights turning green and the cabbie in the car behind you sounding his horn.
Phylogenetic analysis of the BTV-4 strains isolated over a relatively long time interval (1979 2000), in a single geographic area (Greece), showed a low level of nucleotide diversity, indicating that the virus can circulate almost unchanged for many years.
