"working field" is correct and usable in written English.
You can use it to refer to a particular area of occupation, study, or research. For example: "My working field is engineering."
A working field of 120 μm × 120 μm was defined to make an alignment mark on the substrate for photolithography and sputter deposition.
In order not to be affected by the graphic user interface (GUI) modification process in the future experiment in VV assembly working field, the real-time control system is realized as a stand-alone module in the architecture to guarantee the controlling performance of the robot machine.
One year after the events of Captain America: The First Avenger, Agent Peggy Carter, now a member of the Strategic Scientific Reserve, is stuck compiling data instead of working field cases.
Dental loupes with magnification of 2x are sufficient to visualize the working field details.
One of the first activities in establishing Expert Centres, after the delineation of working field and agreement on standard operation protocols, is the provision of reference samples, followed by participation in proficiency testing.
A five axis-gantry robot with stepping motors (working field x = 160 cm y = 90 cm, z = 25 cm) moves the main pipetting head mounted on the z-sled (Z1, see supplementary information).
We're working with field partners.
She was a true giant in the social work field whose career spanned six decades.
australis based on herbarium work, field observation, and molecular data.
We have to stay away from each other in the work field".
I've looked at others in my work field, wondering, "How do I get there?
