"continuous improvement in" is correct and can be used in written English.
This phrase is often used to discuss the process of making something better over time. For example: "We are committed to continuous improvement in customer service."
To keep continuous improvement in training work, training matrices should be improved in accordance with the revision of operating procedures.
There has, however, been a gradual, continuous improvement in the process of care over the years, which has resulted in improved patient outcomes.
We have a philosophy of continuous improvement in our Olympic programme.
As an industry, as chemical engineers and as world citizens, we are committed to continuous improvement in safety.
"This is not sufficient to drive continuous improvement in the sector, or to encourage excellence," the report said.
That allows it to piggyback on the continuous improvement in semiconductor technology.
Providing such rewards would encourage continuous improvement in technology and disaster planning.
Continuous improvement in technology enables us to get the same amount of work using less energy, materials and time.
Just as the information-technology revolution demanded more skilled workers, the continuous improvement in Americans' education stalled.
But to move the concept of distributed computing utilities, or grids, toward practical reality has taken years of continuous improvement in computer processing speeds, data storage and network capacity.
When values and upcycling set the agenda, when – rather than simply inching forward bit by bit toward doing less harm – companies set purposeful goals and seek continuous improvement in everything they do, good design creates more value.
