"three key stages" is a correct phrase in written English.
You can use it when you need to refer to the three major parts of a process or plan. For example, "We have identified three key stages in our business plan: setting goals, managing resources, and measuring success."
For the purposes of this discussion, we'll focus on three key stages.
Three key stages of cancer immuno-editing have been described: elimination, equilibrium, and escape23.
Start-ups typically go through three key stages: customer acquisition, customer retention and success, and sustainable growth.
Based on the play In Moonlight Black Boys Look Blue by Tarell Alvin McCraney, the film follows the life of a man in three key stages.
Construction of the MHLS was done over three key stages, including measure development, pilot testing and assessment of psychometrics and methodological quality.
The author describes the three key stages of the process: (1) To discover potential products, identify opportunities for automation by looking for patterns in your services and zeroing in on the tasks that are performed frequently and require little knowledge.
It has certainly generated a lot of excitement among the teaching staff; I've had three key stage 1 teachers come to me to ask to be involved.
There are typically four key stages: registration, auction, personal offer and acceptance.
The bill is certain to pass into law after being rushed through two key stages in two hours on Wednesday night in the House of Commons.
The proposed deep network consists of initial regional proposal generation and two key stages for image description generation.
We developed a framework that takes leaders through six key stages of equity work through workshops, interactive experiences, and reflective discourse.
