"crucially affect" is a correct and commonly used phrase in written English.
It means to have a significant or important impact on something. Example: The new policy will crucially affect the company's profits for the next quarter.
One key criterion is the realism of crucial assumptions: assumptions that crucially affect the picture of the economy you are trying to understand.
Interactions between such organisational levels crucially affect the development of new public services.
For an electrical railway overhead wire system there are two main factors which crucially affect the quality of current collection.
In debates that crucially affect the wellbeing of the world, ideas and beliefs should be open to tough challenge and hard discussion.
In this post, I'll catch you up on the new laws passed in the last two weeks that crucially affect how the new constitutional order works.
The analysis indicated that the degrees of continuity and regularity of the infill panels crucially affect the seismic performance of structures.
We emphasize that the percolation threshold is crucially affected by hydrodynamic interactions.
Selection of the restoration approach, however, crucially affects the future conservation value of every site.
As the row over the bank job showed, nationality crucially affects top posts; Mr Delors's proposal finesses this.
Therefore, unstart in a scramjet engine crucially affects the design and the operation range of hypersonic vehicles.
The interactions between MWCNT and polycation crucially affected the specific structure and properties of the MWCNT multilayer.
