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目前,国际和国内都在积极推广实行国际单位制(SI)。国际单位制单位由基本单位、辅助单位和导出单位等三类组成。另有国际单位制词冠,词冠加上国际单位制单位构成国际单位制单位的倍数单位和分数单位。关于国际单位制的历史沿革、单位定义、构成原则及应用规则,详见国际计量局所编的《国际单位制(SI)》一书。本文仅就分析化学中实行国际单位制的有关问题,加以说明与讨论。一基本单位
At present, both the international and domestic organizations are actively promoting the implementation of the International System of Units (SI). The system of international units consists of three basic units, auxiliary units and export units. Another unit of the International System of memorials, crown and SI units constitute the SI units multiple units and fractional units. For the history of the SI system, definitions of units, composition principles and application rules, please refer to the International System of Units (SI) book compiled by the International Bureau of Weights and Measures. This article only describes and discusses the issues related to the implementation of the International System of Units in analytical chemistry. A basic unit