California sampler

California sampler

[¦kal·ə¦fȯr·nyə ′sam·plər]
(mining engineering)
A drive sampler equipped with a piston that can be retracted mechanically to any desired point within the barrel of the sampler.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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