单词 | plug |
释义 | plug [plǝg] ELECTRICITY The half of a connector that is normally movable and is generally attached to a cable or removable subassembly; inserted in a jack, outlet, receptacle, or socket. GEOLOGY 1. A vertical pipelike magmatic body representing the conduit to a former volcanic vent. 2. A crater filling of lava, the surrounding material of which has been removed by erosion. 3. A mass of clay, sand, or other sediment filling the part of a stream channel abandoned by the formation of a cutoff. METALLURGY 1. A rod or mandrel over which a pierced tube is forced, or that fills a tube as it is drawn through a die. 2. A punch or mandrel over which a cup is drawn. 3. A protruding portion of a die impression for forming a corresponding recess in the forging. 4. A false bottom in a die. Also known as peg. MINING ENGINEERING A watertight seal in a shaft formed by removing the lining and inserting a concrete dam, or by placing a plug of clay over ordinary debris used to fill the shaft up to the location of the plug. SCIENCE AND TECHNOLOGY 1. A piece of material used to fill a hole. 2. A small segment of material removed from a larger object. |
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