superincumbent stratum
常見(jiàn)例句
- The determination of damage height of superincumbent stratum of goaf has immense meaning for safety and reasonable exploitation of coal seam under water body, building and railway.
確定採(cǎi)空區(qū)上覆巖層破壞高度，對(duì)“三下”煤層安全、高傚開(kāi)採(cǎi)具有重要意義。
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