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SCIENCE STUDY

Measuring the massive

作者:TEENS
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国际单位制新增4个“词头”

Earth weighs six ronnagrams. What is a “ronnagram”?

Participants at the 27th meeting of the General Conference on Weights and Measures agreed to introduce the ronna, quetta, ronto and quecto as prefixes (前缀) for the International System of Units.

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