International system of units (si), international decimal system of weights and measures derived from and extending the metric system of units. The si system (international system of units) is the modern metric system of measurement and the dominant system of international commerce and trade. Si units are gradually replacing.
Today, it is used as an abbreviation for the international system of units, the global. The si base units are measurements used by scientists and other people around the world. All the other units can be written by combining these seven base units in different ways.
The international system of units (si) officially known as the international system of units (si), the metric system is the international standard system of measurement units.
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