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单词 millstone grit
释义

millstone grit

noun [mass noun]
1A coarse sandstone of the British Carboniferous, occurring immediately below the coal measures.This school is built on rock, millstone grit, alongside carboniferous limestone....
  • Furthermore, north Derbyshire is millstone grit and limestone country, with stone walls, sheep farms, and bleak moors, whereas in the south there are hedged dairy and arable farms on clay, sandstone, and alluvium.
  • The geology here is alternating layers of limestone and shale topped with millstone grit.
1.1Any hard siliceous rock suitable for making millstones.About a mile below Grayson, the millstone grit is seen on Barrett's creek....
  • If millstone grit occurs, please state what use has been made of it.
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更新时间:2024/12/23 22:37:00