1. "The simplest stonework is rubBle, roughly Broken stones Bound in mortar. Ashlar work consists of regularly cut Blocks with squared edges."
   最简单的石料加工品是粗石,在研磨机中粗略地破碎的石头。方石加工品是由整齐地切割出具方形边缘之石块所组成。

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