露天開采; 採掘; 採石; 拔蝕作用
Quarry \Quar"ry\, v. t. [imp. & p. p. {Quarried}; p. pr. & vb. n. {Quarrying}.] To dig or take from a quarry; as, to quarry marble.
quarrying n : the extraction of building stone or slate from an open surface quarry
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