单词 | pantograph |
释义 | pan·to·graph (păntə-grăf′) n. 1. An instrument for copying a plane figure to a desired scale, consisting of styluses for tracing and copying mounted on four jointed rods in the form of a parallelogram with extended sides. 2. A similarly jointed framework, such as a power-collecting trolley on an electric locomotive or an extensible telephone arm. [Greek panto-, all; see PANTOMIME + -GRAPH.] pan′to·graphic adj. |
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