“pantograph”的概念、定义、翻译、参考文献-科学参考

单词	pantograph
释义	pantograph [`pan·tǝ´graf] ^ENGINEERING A device that sits on the top of an electric locomotive or cars in an electric train and picks up electricity from overhead wires to run the train. ^{GRAPHIC ARTS} A drawing instrument used for copying and consisting of four rigid bars linked together in a parallelogram form; one arm, equipped with a pencil, is connected through the bars to a pointer that is used to trace the original drawing.
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