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  2. User guide - Wikipedia

    en.wikipedia.org/wiki/User_guide

    User's guide for a Dulcitone keyboard. A user guide, also commonly known as a user manual, is intended to assist users in using a particular product, service or application. It is usually written by a technician, product developer, or a company's customer service staff. Most user guides contain both a written guide and associated images.

  3. M939 series 5-ton 6×6 truck - Wikipedia

    en.wikipedia.org/wiki/M939_series_5-ton_6×6_truck

    The M939 is a 5-ton 6×6 U.S. military heavy truck.The basic cargo versions were designed to transport a 10,000 pounds (4,500 kg) cargo load over all terrain in all weather.

  4. IBM System/3 - Wikipedia

    en.wikipedia.org/wiki/IBM_System/3

    The original S/3 (models 10 and then 6, 8 and 12) had 29 instructions, all occupying between 3 and 6 bytes (24 to 48 bits). The first 4 bits conveyed a lot of information: "1111" meant this was an instruction without operands, known as a command. e.g. Start I/O (the I/O op being defined by previously loaded I/O registers). "11xx" and "xx11 ...

  5. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    Guide L: Sustainability Guide M: Maintenance Engineering and Management Within the construction sector, it is the job of the building services engineer to design and oversee the installation and maintenance of the essential services such as gas, electricity , water, heating and lighting , as well as many others.

  6. Crosshead - Wikipedia

    en.wikipedia.org/wiki/Crosshead

    A crosshead as part of a reciprocating piston and slider-crank linkage mechanism. Cylindrical trunk guide Hudswell Clarke Nunlow; crosshead and two slide bars. In mechanical engineering, a crosshead [1] is a mechanical joint used as part of the slider-crank linkages of long stroke reciprocating engines (either internal combustion or steam) and reciprocating compressors [2] to eliminate ...

  7. GE AC4400CW - Wikipedia

    en.wikipedia.org/wiki/GE_AC4400CW

    The AC4400CW was the first GE locomotive to offer an optional self-steering truck design, intended to increase adhesion and reduce wear on the railhead. [1] This option was specified by Canadian Pacific Railway, Cartier Railway, CSX for their units 201-599, Ferromex, Ferrosur, and Kansas City Southern Railway.

  8. Line-replaceable unit - Wikipedia

    en.wikipedia.org/wiki/Line-replaceable_unit

    A line-replaceable unit (LRU [1]), lower line-replaceable unit (LLRU), [citation needed] line-replaceable component (LRC), or line-replaceable item (LRI) [2] is a modular component of an airplane, [3] ship or spacecraft [4] (or any other manufactured device) that is designed to be replaced quickly at an operating location (1st line).

  9. Analog computer - Wikipedia

    en.wikipedia.org/wiki/Analog_computer

    The planimeter was a manual instrument to calculate the area of a closed figure by tracing over it with a mechanical linkage. A slide rule. The sliding central slip is set to 1.3, the cursor to 2.0 and points to the multiplied result of 2.6. The slide rule was invented around 1620–1630, shortly after the publication of the concept of the ...