The phrase "attainable areas" is correct and usable in written English.
It can be used when discussing regions or aspects that can be reached or achieved, often in contexts like goal-setting or planning.
Example: "In our strategic plan, we will focus on attainable areas for growth to ensure sustainable development."
Alternatives: "reachable zones" or "achievable regions".
Then, the attainable target areas from a given position on the initial elliptic orbit, the feasible impulse position for approaching to a given point in space and the optimal approaching orbit to a given point are analyzed.
Although Sphere standards[ 13] for therapeutic feeding programmes previously stated that mortality rates should not be above 10% and cure rates should be above 80%, there has been a recognition that these standards may not be attainable in areas of high HIV prevalence where there is no access to HIV treatment programmes.
As the geometric complexity and density of finer-scale urban characteristics are related to climatic impacts at the neighborhood scale, sustainability assessments may be more attainable across urban areas.
*"Let us urgently devise the basic objectives in housing, in health, in education, in economic productivity, in communications, which may be attainable by different areas of the hemisphere, according to their human and material resources.
When you have that ability, overwhelm is easily managed and success in all areas feels attainable.
We describe the success of multiple mass antibiotic treatments, demonstrating that complete elimination of infection may be an attainable goal in an area with modest disease.
These results from Nepal imply that the strict definition of elimination of ocular chlaymdia in children may be an attainable goal, at least in areas with modest to moderate disease.
In contrast, detecting fires from space faster than current conventional capabilities in the continental U.S. has not been considered attainable, except in remote, sparsely populated areas.
The model had a low accuracy in gravity controlled areas, where the maximum accuracy attainable was 66%.
Low-stretch flames are also relevant to fire safety in reduced-gravity environments and to large buoyant fires, where localized areas of low stretch are attainable.
