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An apparatus used to demonstrate how root-hairs are used to take in soil-water, vintage line drawing or engraving illustration.
An induction coil, receives a large current of small electromotive force and delivers a small current at a high pressure, vintage line drawing or engraving illustration.
A typical representation of the method of measuring insulation resistance, vintage line drawing or engraving illustration.
Vector colorful icon for experience
Water analysis by the battery, vintage engraved illustration. Industrial encyclopedia E.-O. Lami - 1875.
Golden Five Star Rating System on Blue Background With Hand Adding Star Flat Vector Design

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