File:Type of drill rig and boring depth 1.png
File:Type of drill rig and boring depth 1.png

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	19:26, 21 June 2016		308 × 251 (186 KB)	PLeegar (talk \| contribs)
	19:20, 21 June 2016		308 × 251 (186 KB)	PLeegar (talk \| contribs)

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Vertical resolution	37.79 dpc