The phrase "a narrow range of activity" is correct and usable in written English.
It can be used to describe a limited scope or variety of actions or tasks within a specific context.
Example: "The research focused on a narrow range of activity related to environmental conservation efforts."
Alternatives: "a limited scope of activity" or "a restricted range of actions".
Compared with its peers, this app has a narrow range of activities, which may limit how long it remains useful.
I'm nowhere near as learned as he is, and the skills I do have are distributed across quite a narrow range of activities.
The results of use-wear analysis also suggest that LGM blades were intensively used for performing a narrow range of activities (e.g., skin and meat stripping).
Many women perceive participation in leisure activities to be constrained because they have a narrow range of activities deemed appropriate for women or girls.
Apicidin, which like depsipeptide has some selectivity for class 1 HDACs (Bieliauskas and Pflum, 2008), did not generally mimic the drug sensitivity profiles of either depsipeptide or TSA, showing a narrower range of activity with a smaller distribution of IC50 values across the non-uveal melanoma cell line panel (compare Figure 2A with Figure 1C).
The trouble with today's leaders seems to stem from their experience being confined to a narrow range of political activity – usually as a special adviser.
Evidence from animal and human models indicates that dopamine DA impacts on PFC function in accordance with an inverted U-shaped dose-response curve, such that the response is optimized within a narrow range of DA activity, with too little or too much DA having a relatively deleterious effect [ 13, 14].
These Urzymes had a narrow range of specific activities.
Within a narrow range of difference in activity, maximum activity was observed against HHL (C6-HSL) as a substrate with slight difference when compared to activity against C4-HSL and C7-HSL while least degrading activity was observed against C8-HSL.
In addition to the technology disparity between desktop and mobile, Sivaramakrishnan notes that people are usually using their mobile devices for a relatively narrow range of activity, usually entertainment or content consumption, so it's only by accessing to their desktop activity that advertisers can determine "commercial-grade intent".
