bn:00216542n
Noun Concept
Categories: 水質の指標
JA
溶存酸素量  酸素飽和度  溶存酸素
JA
溶存酸素量(ようぞんさんそりょう、Dissolved Oxygen Wikipedia
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JA
溶存酸素量(ようぞんさんそりょう、Dissolved Oxygen Wikipedia
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