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一、引言尺寸的精密测量,是计量测试的核心。计量技术是提高技术经济效盆和保证产品质量的重要手段,对国民经济建设具有十分重要的意义。
I. INTRODUCTION The precise measurement of dimensions is the core of the measurement test. Measurement technology is an important means to improve technical and economic efficiency and ensure product quality, and is of great significance to the national economic construction.