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近年来,由于形位公差的发展,现代技术制图发生了较大的变革.简练醒目的符号标注法使零件的设计要求表达得更加清楚、更加准确,图纸的面貌为之一新.
In recent years, due to the development of geometric tolerances, the great changes have taken place in modern technical drawing.It concisely and conspicuously shows the design requirements of parts more clearly and accurately, and the appearance of drawings is a new one.