特厚 meaning in Chinese

extra thickness

Hot - rolled steel sheet in coils of structural quality and heavy thickness
结构质量和特厚的成卷热轧钢薄板
A roof - coal - discharging test mining by predetonation in super high seam
坚硬顶板特厚煤层预爆破放顶采煤试验
Study of seam structure characteristics under large and extra thick nappe
大型特厚推覆体下煤层构造特征的研究
Analysis on efficient intensive production and mine safety of
双突三软特厚煤层矿井高效集约化生产与矿井安全分析
The construction in special thick clay layer in qidong coal mine auxiliary shaft
祁东矿副井井简过特厚粘土层施工

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