The phrase "gradual establishment" is correct and usable in written English.
It can be used to describe a process that occurs slowly over time, often in contexts related to development or implementation.
Example: "The gradual establishment of the new policy took several months to complete, ensuring that all stakeholders were on board."
Alternatives: "slow implementation" or "progressive formation."
After that the newly installed Chinese administrators relied on military control and a gradual establishment of civilian regional autonomy.
Photography's gradual establishment in the museum went hand in hand with the emergence of a buoyant market for shows and sales in private galleries.
He also oversaw the gradual establishment of vocational, trade, and agricultural centres, numerous high schools and schools of business administration, and the founding of the University of Navarra, which many consider Spain's finest university.
Such a hypothesis would mean that the gradual establishment of human circadian rhythms of sleep or temperature results from maturation of the nervous system rather than from conditioning in the strict sense.
Microsoft's gradual establishment of its dominance in PC software, via its Windows and Office monopolies, owes as much to its ability to outlast its competitors as to clever programming or anti-competitive behaviour.
A plenum in 2008, also the third in a cycle, upheld the Maoist notion of collective ownership of rural land but at the same time called for the "gradual" establishment of a "unified urban and rural market" for construction land, which includes land used for rural housing and factories.
1980 - Lisbon agreement between the British and Spanish government initiates the gradual re-establishment of talks over Gibraltar.
After a seemingly short period of adjustment, Stratton reported a gradual re-establishment of harmony between the deliverances of sight and touch.
Rather than sorting and securing a crucial figure's "papers" — the ephemeral, inevitably decaying documents that chronicle an intellectual arc, the gradual but pointed establishment of some personal ideology or gestalt — it would catalogue her Twitter feed.
The view of Christ as king, high priest, mediator, and victim influenced the establishment and gradual development of the Christian priesthood in the church, which shares in and makes accessible to its baptized members the all-sufficient priesthood of Christ.
Given that the machinery that is required to re-establish H3K9me3 are localized to replication forks, it is somewhat surprising that the kinetics of H3K9me3 re-establishment is gradual, not rapid, after DNA replication [ 30].
