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地殻中元素存在度
Wikipedia definition
1. Abundance of elements in Earth's crustThe table shows the abundance of elements in Earth's crust. Numbers show percentage or parts per million (ppm) in mass; 10,000 ppm = 1%. Note that numbers are estimates, and they will vary depending on source and method of estimation. Order of magnitude of data can roughly be relied upon.
Read “Abundance of elements in Earth's crust” on English Wikipedia
Read “地殻中の元素の存在度” on Japanese Wikipedia
Read “Abundance of elements in Earth's crust” on DBpedia

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