文件名称:jiliangjichuzhishi
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计量是一种 准确 的测量。
2、 计量器具按用途可分为 计量基准器具 、 计量标准器具-Measurement is an accurate measurement. 2, the measuring instruments can be divided into baseline measurement by use of equipment, standards of measurement
2、 计量器具按用途可分为 计量基准器具 、 计量标准器具-Measurement is an accurate measurement. 2, the measuring instruments can be divided into baseline measurement by use of equipment, standards of measurement
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