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单词 bed thinning
释义
bed thinning
  • 简明释义
  • 煤层变薄
  • 网络释义
  • 1

    ?煤层变薄

    ... 方钙饰镧矿 beckelite 煤层变薄 bed thinning 层状铁矿 bedded iron ore ...

短语
  • 双语例句
  • 1
    Coalfield structure was controlled by NNE structure. Coal bed structure thinning belt was also extended in NNE directions, Southern Hebei coalfield.
    煤田构造主要受北北东向构造所控制,其煤层构造变薄带也主要呈北北东向伸展。
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更新时间:2025/1/11 5:20:19