The host rock conformably overlies a band of siliceous chertybrecia.
含矿主岩整合地上

质燧石角砾石带之上。
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沙精
对谈(双语精选) He held it high over his head, and the pebble-dashed walls of number two suddenly sparkled; the garage door gleamed, and between them, Harry saw, quite distinctly, the hulking outline of something very big, with wide, gleaming eyes.
他把魔杖高举过头,布满砾石的二号墙体忽然闪烁着亮光;车库的门发出微光,在这两
之间,哈利清楚地看到,一个很大的、有着发微光大眼睛的什么东西的庞大轮廓。