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  2. Engineering drawing abbreviations and symbols - Wikipedia

    en.wikipedia.org/wiki/Engineering_drawing...

    Means that a feature of size is at the limit of its size tolerance in the direction that leaves the most material on the part. Thus an internal feature of size (e.g., a hole) at its smallest diameter, or an external feature of size (e.g., a flange) at its biggest thickness. The GD&T symbol for MMC is a circled M.

  3. Geometric dimensioning and tolerancing - Wikipedia

    en.wikipedia.org/wiki/Geometric_dimensioning_and...

    Example of true position geometric control defined by basic dimensions and datum features. Geometric dimensioning and tolerancing (GD&T) is a system for defining and communicating engineering tolerances via a symbolic language on engineering drawings and computer-generated 3D models that describes a physical object's nominal geometry and the permissible variation thereof.

  4. Plywood - Wikipedia

    en.wikipedia.org/wiki/Plywood

    The sizes of the most commonly used plywood sheets are 4 by 8 feet (1,220 mm × 2,440 mm) [20] which was first used by the Portland Manufacturing Company, who developed modern veneer core plywood for the 1905 Portland World Fair. A common metric size for a sheet of plywood is 1200 × 2400 mm. 5 × 5 feet (1,500 × 1,500 mm) is also a common ...

  5. Line graph - Wikipedia

    en.wikipedia.org/wiki/Line_graph

    In the mathematical discipline of graph theory, the line graph of an undirected graph G is another graph L(G) that represents the adjacencies between edges of G. L(G) is constructed in the following way: for each edge in G, make a vertex in L(G); for every two edges in G that have a vertex in common, make an edge between their corresponding vertices in L(G).

  6. Total coloring - Wikipedia

    en.wikipedia.org/wiki/Total_coloring

    The total graph T = T(G) of a graph G is a graph such that (i) the vertex set of T corresponds to the vertices and edges of G and (ii) two vertices are adjacent in T if and only if their corresponding elements are either adjacent or incident in G. Then total coloring of G becomes a (proper) vertex coloring of T(G).

  7. Category:ITU-T G Series Recommendations - Wikipedia

    en.wikipedia.org/wiki/Category:ITU-T_G_Series...

    Specification Range Specification Type; G.100 - G.199: International Telephone Connections and Circuits G.200 - G.299: General Characteristics Common to all Analogue Carrier Transmission Systems

  8. Toyota T engine - Wikipedia

    en.wikipedia.org/wiki/Toyota_T_engine

    When bored out to a maximum of 89 mm (3.5 in) and combined with a 3T crankshaft, the 2T and 2T-G will have a displacement of almost 2.0 L. The 2T and 3T series use the same connecting rod dimensions, with the different pin heights on the pistons. Aftermarket pistons are available from very low (<7.0:1) through to very high (>13.0:1) compression ...

  9. Tongue and groove - Wikipedia

    en.wikipedia.org/wiki/Tongue_and_groove

    Tongue-in-groove is similar to tongue and groove, but instead of the tongue forming part of one of the edges, it is a separate, loose piece that fits between two identically grooved edges.