Insert a foil pack of powdered insulin into a slot, prime the pump with a lever and push a trigger that releases the cloud of insulin into a clear plastic chamber.

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The outer layers are made of acrylic plastic and the vacuum chamber in the middle is divided into three or four watertight compartments stacked on top of one another.

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The pride of completion includes plastic-fashioned laser cannons, escape pods, Darth Vader meditation chamber and a hologram of the evil Emperor.

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In this type of therapy, you'll be situated in a special chamber, which usually consists of a padded table that slides into a clear plastic tube.

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So Parks borrowed a tool common in the welding of plastic components, which is to gently agitate the hopper so that particles flow like water into a metering chamber.

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