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deep suction vacuum tube pump system Werner Wils
deep suction vacuum tube pump system Werner Wils
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机译:深吸式真空管泵系统Werner Wils
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摘要
The deep-sucking vacuum tube pumps (1) are characterized in that their groundwater (2) sucking variable vacuum tube (3) and the groundwater (2) dissipating spoon pumps (4) occur arranged at different altitudes.
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