Definition of piston corer in English:

piston corer

noun

Geology

单词	piston corer
释义	Definition of piston corer in English: piston corer noun Geology A piston-driven cylindrical device for taking samples of material from the seabed. 〔地质〕活塞取芯器 Example sentencesExamples Cores were collected by piston corer, extruded in the field, and the top one or two centimeters were used for chironomid analysis. A piston corer consists of a tubular barrel driven into the sediment by a large weighted head. The piston corer is designed to take samples from soft cohesive soils.
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