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Reference speed sign: after passing this sign the train can accelerate to the reference speed limit of the line, which is the speed indicated (in tens of km/h). Additional panels ( special triangles, for example) are used to indicate that only certain types of trains are affected: e.g., "HKM" means the sign only concerns freight trains .
The symbolic representation of a V weld of chamfered plates in a technical drawing. The symbols and conventions used in welding documentation are specified in national and international standards such as ISO 2553 Welded, brazed and soldered joints -- Symbolic representation on drawings and ISO 4063 Welding and allied processes -- Nomenclature of processes and reference numbers.
A plumb bob, plumb bob level, or plummet, is a weight, usually with a pointed tip on the bottom, suspended from a string and used as a vertical direction as a reference line, or plumb-line. It is a precursor to the spirit level and used to establish a vertical datum. It is typically made of stone, wood, or lead, but can also be made of other ...
The technology gives gate agents an audible signal when someone scans their ticket and tries to board early, prompting that passenger to step aside and wait for their correct group to be called.
A plumbline is a string with a lead (Latin plumbum) weight (or plumb bob), used to provide a vertical reference line. It may also refer to: The Plumbline, a joke newspaper produced by the McMaster Engineering Society; the vertical direction, a line orthogonal to the geoid, as used in geodesy
For a friend or spouse who loves to set sail, the Princess Cruise Line offers a breathtaking package The Alaska Cruise Line. Travelers will have the best view of the state’s national parks ...
Katie Holmes is bringing stirrup pants back, whether you're here for their return or not. The actress, 45, stepped out in New York City ahead of Thanksgiving Day, sporting the polarizing '80s ...
A station number written on a silt fence at a construction site. Linear referencing, also called linear reference system or linear referencing system (LRS), is a method of spatial referencing in engineering and construction, in which the locations of physical features along a linear element are described in terms of measurements from a fixed point, such as a milestone along a road.