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2. Grundfos - Wikipedia

   en.wikipedia.org/wiki/Grundfos

   The annual production of more than 16 million pump units, circulator pumps (UP), submersible pumps (SP), and centrifugal pumps (CR). Grundfos also produces electric motors for the pumps as well as electric motors for separate merchandising. Grundfos develops and sells electronics for controls for pumps and other systems.

3. Guy-wire - Wikipedia

   en.wikipedia.org/wiki/Guy-wire

   September 2014) (Learn how and when to remove this message) A sailboat's mast is supported by shrouds (side-to-side) and stays (fore-and-aft) – nautical equivalents of guy wires. A guy-wire , guy-line , guy-rope , down guy , or stay , also called simply a guy , is a tensioned cable designed to add stability to a freestanding structure.

4. Air conditioning - Wikipedia

   en.wikipedia.org/wiki/Air_conditioning

   The efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER), which is defined by the Air Conditioning, Heating and Refrigeration Institute in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [61]

5. List of abbreviations in oil and gas exploration and production

   en.wikipedia.org/wiki/List_of_abbreviations_in...

   PDGB – permanent drilling guide base; PDKL – PDK log [clarification needed] PDKR – PDK 100 report [clarification needed] PDM –positive displacement motor; PDMS – permanent downhole monitoring system; PDP – proved developed producing (reserves) PDP – positive displacement pump; PDPM – power distribution protection module

6. Cable guide - Wikipedia

   en.wikipedia.org/wiki/Cable_guide

   Black plastic cable guide on the bottom of a Trek 5000 bottom bracket shell Metal, braze-on cable guide on the top of a bottom bracket shell. A cable guide is a fitting or part of a bicycle frame which guides a piece of bare inner bowden cable around a corner. Most multi-speed bicycles have cable guides to get the derailleur cables past the ...

7. Great Cobar mine - Wikipedia

   en.wikipedia.org/wiki/Great_Cobar_mine

   By the beginning of September 1914, only twenty men were employed, and the only activity was the operation of the mine pumps. [247] The mines pumps were kept running, until 6 September 1915, when pumping stopped for the first time in 24 years. The engine drivers agreed to work for nothing for another fortnight, to prevent the mine from filling.