"generating approximately" is correct and usable in written English.
You can use it to express that something is happening within a range that is not exact. For example: "The wind turbine is generating approximately 8,000 kilowatts of electricity."
The specialized shift assignment heuristic (SSAH) that I developed runs on a personal computer, generating approximately three solutions per second.
A 40 MeV 200 μA proton beam will directly impinge a uranium carbide target, generating approximately 1013 fissions per second.
Another state is generating approximately $300m a year [an apparent reference to Zambia, which earlier this year said it would lift a ban on hunting], which is then ploughed back into conservation.
If just 20% of the 10m people who got this message were curious enough to pay $7.95 to see who's following them, that's 2m people generating approximately $15m for LinkedIn's bottom line.
It shows companies with representation on CDP's carbon disclosure leadership index and the carbon performance leadership index generating approximately double the average total return of the Global 500 from January 2005 and May 2011.
We suggest that the HCTs represent an underutilized source of geochemical data, with a year-long test generating approximately 2500 individual chemical data points.
This setting generates approximately 15,000 specimens per year.
For the record, the electricity I used last week generated approximately 81kg of carbon.
In 2011 it generated approximately £5m from selling clothes for recycling.
Headquartered in New York, Vice employs 50 full-time staff and generates approximately $5m in annual gross sales.
Small business generates approximately 75percentt of America's net new jobs.
