2026年11月4日星期三
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Rekod Semesta
Berita Pantas Global
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In situ stress constrains and redirects crack propagation during ultra-deep hole blasting of thick and hard roofs in coal mines

Sumber Nature 物理科学1 hari lalu
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In situ stress constrains and redirects crack propagation during ultra-deep hole blasting of thick and hard roofs in coal mines · Rekod Semesta