English |
Perturbation | |
environ. | Perturbance |
Boiler | |
gen. | boiler; hot water heater; hot-water boiler |
forestr. | burner |
Operation | |
gen. | operation |
med. | surgical procedure |
Operations- | |
econ. | operational |
controlled: 3 phrases in 3 subjects |
Economy | 1 |
Medical | 1 |
Physics | 1 |