Last Updated：2025/11/21
Researchers studying ancient coal seams observed that graphitization significantly altered the rock's mechanical properties over millions of years.
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Researchers studying ancient coal seams observed that graphitization significantly altered the rock's mechanical properties over millions of years.
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古い石炭層を研究している研究者たちは、数百万年にわたって黒鉛化が岩石の力学特性を大きく変化させたことを観察した。
