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wallrock

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na.围岩

wallrock

wallrock

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wallrock

围岩

W ... wallrock alteration 围岩蚀变 wallrock 围岩 walrus ivory 海象牙 ...

1

Study of temporary support technology in roadway surrounded by highly unstable wallrock

极不稳定岩土巷道预支护技术研究

2

Deformation and its control of tunnel surrounded by weak wallrock under condition of textural stress

构造应力作用下软岩巷道变形与控制研究

3

Reconstructing Technique on Big Section Inclined Coal Pocket in Complex Wallrock Condition

复杂围岩条件下大断面倾斜煤仓改造技术

4

Key Construction Techniques of Multi-Arch Tunnel with Soft Wallrock in Water-Enriched Section

软弱围岩富水地段连拱隧道关键施工技术

5

Geochronological and geochemical study on the wallrock of Tuwu-Yandong porphyry copper deposits, eastern Tianshan mountains

东天山土屋 -延东斑岩铜矿围岩的同位素年代和地球化学研究

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