Automation System
The coordinate system used to describe a workpiece:

is defined with respect to a point on the machine
changes from part to part
None of these
All of these
is always two-dimensional

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Automation System
A semi-continuous operation means:

coffee breaks are allowed for the operator
each operation in a sequence is continuous, but subsequent operations in the sequence may be different.
None of these
a computer is a required part of the machine
the operation is continuous each shift, but stops between shifts

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