The system is usually fully automatic without human intervention, but manual operation can be inserted when needed.
In either case, the design required manual operation from outside the stationary vehicle.
Industrial training for manual operations is designed to encourage this kind of development (Seymour, 1966).
In manual operation, a cord runs to each box from a handle held by the operator.
Thus, the Freon is currently only used for manual operations, which are a small part of the process.
The developing nations worldwide use automation along with manual operations.
You should check at key times - such as shift changes - that operators haven't set systems to manual operation unnecessarily.
This principle is concerned with the collection of data, often a manual operation carried out separate from the computer process.
But they later had to return to manual operations when the system failed to lock onto a star.
Some designs are portable and can be converted to manual operation in an emergency.