和地下的水道砂岩打交道的石油地质工作者，必须具备地貌学方面的基础知识。
The petroleum exploration geologist working with subsurface channel sandstone must have a background knowledge of geomorphology.
和地下的水道砂岩打交道的石油地质工作者，必须具备地貌学方面的基础知识。
The petroleum exploration geologist working with subsurface channel sandstone must have a background knowledge of geomorphology.
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