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An Optical Device That Shuts Down the Machine Any Time

question 3

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An optical device that shuts down the machine any time the light field is broken is which of the following?


Definitions:

OSHA

The Occupational Safety and Health Administration, a federal agency of the United States that ensures safe and healthful working conditions by setting and enforcing standards.

Business Groups

Collections of businesses, often linked by ownership or control, that work together to achieve economic or political goals.

Racial Balance

Efforts or policies aimed at achieving an equitable representation and integration of various racial groups within institutions or geographic areas, often used in the context of school desegregation and housing.

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