• 华南稀土花岗岩风化主要分为腐植风化风化层。

    The weathering crust of REE granites in southern China can be divided into humic layer, completely weathering layer and partly weathering layer.

    youdao

  • 厦门海底隧道海域隧道地段存在风化深槽,岩体主要风化花岗岩

    The underwater section of the Xiamen subsea tunnel will encounter many weathered strata, and the main rock of the weathered strata is fully or strongly weathered granite.

    youdao

  • 风化及强风化花岗岩金刚石钻进低于冲击凿碎比功值;

    The value of SEDD is nearly equal to that of specific energy of percussive drilling(SEPD) in moderately weathered granite.

    youdao

  • 风化及强风化花岗岩金刚石钻进低于冲击凿碎比功值;

    The value of SEDD is nearly equal to that of specific energy of percussive drilling(SEPD) in moderately weathered granite.

    youdao

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