ultra thick seam 巨厚煤层
ultra-thick 超厚
ultra thick oil 超稠油
ultra-thick plate 特厚钢板
ultra-thick concrete 超厚混凝土
ultra-thick coal bed 超厚煤层
The ultra thick texture brings extraordinary enjoyment, has impeccable wear-resisting, anti-strike and anti-scratch performance.
超厚的质感带来非凡的享受,具有无可挑剔的耐磨、抗打击和防刮擦性能。
The feasibility of the protective coal pillar mining in the artificial inclined steep drift in the thick (ultra thick) coal seam of a large slope is discussed.
论证了急倾斜厚(特厚)煤层伪斜上山保护煤柱回收的可行性。
With the exploration and exploitation of oilfield deepening, application of the techniques for all kinds of super deep Wells, horizontal Wells, thick casing Wells and ultra low density cement, etc.
随着油田勘探开发的深入,各种超深井、水平井、厚套管井、超低密度水泥等工艺的应用,给固井质量评价技术提出了新的要求。
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