The phrase "a sufficient span" is correct and usable in written English.
It can be used to describe an adequate length or duration of time, distance, or range in various contexts.
Example: "The project requires a sufficient span of time to ensure thorough research and development."
Alternatives: "an adequate range" or "a suitable duration".
They, too, should have a sufficient span to provide for future widening of the thoroughfare.
Another para-hydroxylated metabolite, 4-HO-BDE-42, appears to have been more potent than DE-71, but because of limited availability of this compound, the analysis was not carried out with a sufficient span of concentrations to allow an accurate estimate of the EC50.
Find a sufficient span of positions (commander, private, etc).
When updating the scatter matrices, a sufficient spanning set concept is used to reduce the dimension of the eigenvalue problem.
This is imputable to a publication bias that is detected and to the fact that more sophisticated methods and more controls can be used once a sufficient time span is available.
Although these hydrodynamic conditions are critical for all marine and hydraulic works along the Bosphorus, there was not continuous long-term measurement for a sufficient time span in the strait for detailed evaluation of the current climate.
The problem is that of handling each particular EGS system in such a way that economic flow rates at the right temperature and over a sufficient time span can be obtained.
The six-layered consecutive lava flows and massive basalts are considered to cover a sufficient time span to average out the influence of paleosecular variation to yield representative paleointensity estimates.
In addition, some unique strains may result from recent rather than remote transmission, and they would form clusters over a sufficient time span.
A sufficient amount of Span 80 was added to the prepared porogen with agitation to obtain 1% (v/v) dispersion.
The chosen profiles span a sufficient timeframe and content to get a significant variance of activity profiles, and a sufficient amount of dynamical context changes (new activities and tasks, high load versus night timeframes).
