| 单词 | scallop slate | 
| 释义 | > as lemmasscallop slate ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > sedimentary rock > 			[noun]		 > shale > others till1672 bass1686 bat1686 blue metal1699 scallop slate1711 black shale1730 shale-shiver1794 shale1825 till-stonec1830 Wenlock shale1834 famp1836 Boghead1858 oil shale1866 paper shale1874 symon1881 paste-rock1882 slasto1953 1711    J. Petiver Gazophylacii VI. Table LI  				Flat thin Scallop Slate. < as lemmas | 
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