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Svitol Naos

water supply system -- Britannica Online Encyclopedia - 1 views

  • water supply system
  • transmission, treatment, storage, and distribution of water for homes,
  • . Among the most notable of ancient water-conveyance systems are the aqueducts built between 312 bce and 455 ce
  • ...9 more annotations...
  • Water supply systems must also meet requirements for public
  • activities
  • The need to channel water supplies from distant sources was an outcome of the growth of urban communities
  • Of all municipal services, provision of potable water is perhaps the most vital
  • In the development of water resources beyond their natural condition in rivers, lakes, and springs, the digging of shallow wells was probably the earliest innovation. As the need for water increased and tools were developed
  • Developments in supply systems
  • Water was an important factor in the location of the earliest settled communities, and the evolution of public water supply systems is tied directly to the growth of cities.
  • water supply system
  • water supply system
  •  
    Water supply system!
cosimogirolamo

Visual Dictionary Online - 0 views

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    QA International launched El Diccionario Visual, a new valuable resource to learn Spanish. Includes 17 all-around themes to explore, including the human body, sciences and food. MORE Today QA International presents a new downloadable version of the celebrated Visual Dictionary: The Visual Multimedia 4th Edition.
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