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A Basic ____ Can Aid in Clamping Frame Assemblies So

question 19

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A basic ____ can aid in clamping frame assemblies so that they are square.


Definitions:

Convex Lenses

Optical lenses that curve outward, capable of bending light rays to converge at a focal point, often used in magnifying glasses.

"Minus" Lenses

Eyeglass lenses designed to correct myopia (nearsightedness) by diverging light rays before they reach the eye.

Conjunctiva

A thin, transparent membrane that covers the white part of the eyeball and the inner surfaces of the eyelids.

Choroid

A layer of the eye between the retina and the sclera, rich in blood vessels, that provides oxygen and nutrients to the outer parts of the retina.

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