The key features of the International system are decimalization, a system of prefixes, and a standard defined in terms of an invariable physical measure.

国际制度的主要特点是采用了十进制法、首体系、不变的物理度量方式解释的标准。

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The key features of the International system are decimalization, a system of prefixes, and a standard defined in terms of an invariable physical measure.

国际制度的主要特点是采用了十进制法、首体系、不变的物理度量方式解释的标准。

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