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一、总则 1.中华人民共和国法定计量单位(简称法定单位)是以国际单位制单位为基础,同时选用了一些非国际单位制的单位构成的。法定单位的使用方法以本文件为准。 2.国际单位制是在米制基础上发展起来的单位制。其国际简称为SI。国际单位制包括SI单位、SI词头和SI单位的十进倍数与分数单位三部分。按国际上的规定,国际单位制的基本单位、辅助单位、具有专门名称的导出单位以及直接由
I. General Provisions 1. The legal measurement unit of the People’s Republic of China (abbreviated as the statutory unit) is based on the International System of Units, and at the same time it has selected some non-SI units. The use of statutory units is subject to this document. 2. The international system of units is a system of units developed on the basis of the metric system. Its international abbreviation is SI. The International System of Units consists of three parts: decimal units and fraction units for SI units, SI prefixes, and SI units. According to the international regulations, the basic unit of the international system of units, ancillary units, export units with special names, and direct