The phrase "are relatively well established" is correct and usable in written English.
It can be used when discussing concepts, theories, or practices that have gained acceptance or recognition within a certain field or context.
Example: "The principles of sustainable development are relatively well established in environmental science."
Alternatives: "are fairly well recognized" or "are quite well accepted".
Both of these two macro trends are relatively well established and well understood.
"Netherlands and Austria are relatively well established, but the UK is the fastest growing market for the development of biomethane plants".
While these interventions are relatively well established in disaster risk management systems around the world, a number of key areas remain critical for their effectiveness.
Here we use goethite as a positive control in our experiments, as the impacts of goethite on the cycling of forest floor-derived DOM are relatively well established [13, 15, 19, 55].
These direct effects of water stress on numerous metabolic and physiological processes in rice are relatively well established in models, mostly using optimal trends obtained from field or laboratory experiments.
A stent technology and mechanical behaviour of metallic stents are relatively well established; however, due to the non-linear, viscoplastic and degradable behaviour of PLLA along with an altering mechanical response of the device in-vivo, the performance of BRSs with degradation is not as established (Bergstrom and Hayman 2016).
Although the incidence of colorectal cancer in carriers is relatively well established, the frequency of other tumors is less clear.
After a decade of research, our knowledge of "immersion nucleation", where a large droplet engulfs fine particles, is relatively well established.
The strength anisotropy under compression has been relatively well established, whereas the formulation of the tensile strength anisotropy has received less attention due to the difficulty of experimental validation.
The path that is followed by nascent proteins inside the ribosome and the Sec-complex is relatively well established; however, it is not clear what the fate of the N-terminal transmembrane domains (TMDs) of polytopic membrane proteins is when the C-terminal TMDs domains are not yet synthesized.
While the species taxonomy is relatively well established, the organization of brain regions is still much debated, and the multi-dimensional hierarchies underlying the current version of OntoSearch are destined to evolve.
