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  2. .dwg - Wikipedia

    en.wikipedia.org/wiki/.dwg

    DWG (from drawing) is a proprietary [3] binary file format used for storing two- and three- dimensional design data and metadata.It is the native format for several CAD packages including DraftSight, AutoCAD, ZWCAD, IntelliCAD (and its variants), Caddie and Open Design Alliance compliant applications.

  3. Sewerage - Wikipedia

    en.wikipedia.org/wiki/Sewerage

    It encompasses components such as receiving drains, manholes, pumping stations, storm overflows, and screening chambers of the combined sewer or sanitary sewer. Sewerage ends at the entry to a sewage treatment plant or at the point of discharge into the environment. It is the system of pipes, chambers, manholes or inspection chamber, etc. that ...

  4. List of DIN standards - Wikipedia

    en.wikipedia.org/wiki/List_of_DIN_standards

    This is an incomplete list of DIN standards.. The "STATUS" column gives the latest known status of the standard.. If a standard has been withdrawn and no replacement specification is listed, either the specification was withdrawn without replacement or a replacement specification could not be identified.

  5. Sanitary manhole - Wikipedia

    en.wikipedia.org/wiki/Sanitary_manhole

    A sanitary manhole under construction. A sanitary manhole (sewer manhole, [1] sanitary sewer manhole [2] or sewer maintenance hole [3]) is a manhole that is used as an access point for maintenance and inspection of an underground sanitary sewer system. Sanitary manholes are sometimes used as vents to prevent the buildup of pressurized sewage ...

  6. Precast concrete - Wikipedia

    en.wikipedia.org/wiki/Precast_concrete

    A precast concrete walled house under construction An example of low-quality precast concrete with exposed dowels, connectors, indications of cracks, and malformations, even during its installation, Barangay Lantic, Carmona, Cavite, Philippines Interior view of the walls, supports, and roof of a precast commercial shop in Williston, North Dakota, US.

  7. Structural engineering - Wikipedia

    en.wikipedia.org/wiki/Structural_engineering

    The Eiffel Tower in Paris is a historical achievement of structural engineering.. Structural engineering is a sub-discipline of civil engineering in which structural engineers are trained to design the 'bones and joints' that create the form and shape of human-made structures.

  8. List of ISO standards 3000–4999 - Wikipedia

    en.wikipedia.org/wiki/List_of_ISO_standards_3000...

    ISO 4067-2:1980 Part 2: Simplified representation of sanitary appliances [Withdrawn without replacement] ISO 4067-3:1984 Part 3: Graphical symbols for automatic control [Rejected draft later published as ISO/TR 8545] ISO 4067-6:1985 Part 6: Graphical symbols for supply water and drainage systems in the ground [Withdrawn without replacement]

  9. Sanitation in ancient Rome - Wikipedia

    en.wikipedia.org/wiki/Sanitation_in_ancient_Rome

    The Romans were the first to seal pipes in concrete to resist the high water pressures developed in siphons and elsewhere. Beginning around the 5th century BC, aediles, among their other functions, supervised the sanitary systems. They were also responsible for the efficiency of the drainage and sewage systems, the cleansing of the streets ...