After sitting in that smoky room for an hour, I started to feel a contact high and realized I should get some fresh air.

Anthropologists documented the community's first contact with the neighboring islanders, noting the exchange of rituals and stories.

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The chemical plant optimized the contact process to increase sulfuric acid yield while reducing emissions.

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The photographer examined the contact print to check the sharpness and tonal range before making an enlargement.

To determine the final temperature, place the two metal blocks in thermal contact and allow them to exchange heat until equilibrium is reached.

Due to increased patient contact, the clinic implemented stricter hygiene protocols.

The newly discovered contact binary displayed irregular light variations due to mass transfer between the stars.