| 释义 |
buhrstone 也作 burr·stone AHD[bûrʹstōn'] D.J.[ˈbɜːˌstəʊn]K.K.[ˈbɝˌston]n.（名词）- A tough, silicified limestone formerly used to make millstones. It is typified by the presence of multiple cavities that originally housed fossilized shells.磨石，砂质多孔石灰岩：一种坚硬的，硅化石灰石，以前用来制作磨石。具有最初由化石化的贝壳而形成的多孔特征
- Variant of burr 1 burr1的变体
- stone stone
|