The last stage of drilling a geothermal well is filling the space around the tubes with a thermally conductive grout. This machine mixes the grout and pumps it down the hole.
Copyright: Thomas K Sharpless Type: Spherical Resolution: 9200x4600 Taken: 19/10/2017 上传: 21/10/2017 Published: 02/12/2017 观看次数:
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