The phrase "a labor-intensive process" is correct and usable in written English.
It is typically used to describe a process that requires a lot of manual or physical labor. Here is an example: "The construction of the new building was a labor-intensive process, with workers having to manually dig and lay the foundation by hand."
Numerous machines had been devised for breaking and scutching hemp fibers but non had been found to be fully satisfactory in actual commercial work To produce fiber from hemp was a labor-intensive process if you include harvest, transport and processing.
Creating those graphics, already a labor-intensive process, will become even more costly.
Gilding, a labor-intensive process, can be simulated with a spray stain, but costs remain high.
In Leguruki, coffee shelling is a labor-intensive process for small-scale farmers.
Investigators may have to go back and interview everyone who has invested state pension funds, a labor-intensive process.
This is a labor-intensive process and, as with all manual procedures, is susceptible to human observer biases.
Human classification of diagnoses is a labor intensive process that consumes significant resources.
This is a labor intensive process and it is not without risk of losing important lines because of contamination or disease.
In the past, extracting information from product reviews has been a labor intensive process that has restricted studies on this topic to single product categories or those limited to summary statistics such as volume, valence, and ratings.
Teaching surgical skills is a labor intensive process, requiring a high tutor to student ratio for optimal success, and teaching for undergraduate students by consultant surgeons is not always feasible.
The first display lays out the process of making each shade, a labor intensive process in which pieces of glasses -- selected by women, who Tiffany believed had a better sense of color -- are assembled piece by piece around a wooden mold.
