The boreal embraces the highest mountain altitudes; the transition belts it on both sides of the continental divide; the upper Sonoran takes in about the eastern half of the plains region east of the mountains, and is represented further by two small valley penetrations from Utah. [Please select]
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Tests for indentation are commonly made by penetrations of the material with a steel punch or ball. [Please select]
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Two penetrations each are made on the tangential and radial surfaces, and one on each end of every specimen tested. [Please select]
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Two penetrations will be made on a tangential surface, two on a radial, and one on each end of each specimen tested. [Please select]
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