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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.
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.
Very narrow gauges of under 2 feet (610 mm) were used for some industrial railways in space-restricted environments such as mines or farms. The French company Decauville developed 500 mm ( 19 + 3 ⁄ 4 in ) and 400 mm ( 15 + 3 ⁄ 4 in ) tracks, mainly for mines; Heywood developed 15 in ( 381 mm ) gauge for estate railways .
The T&G Building was a landmark building in Townsville, Australia. Constructed in 1955-9, the two and three storey building was designed in a 1950s version of art deco , featuring a striking vertical 36 metres (120 ft), 6 storey high clock tower on the a corner of Flinders and Stanley streets.
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).
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 ...
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.
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