ball clay

名词 n.
中文释义

英文释义

名词 n.
  1. A type of clay that commonly consists of 20-80% kaolinite, 10-25% mica, and 6-65% quartz. uncountable,usually

词形变化

ball clays plural

词源

Clay of this kind found in Dorset and Devon, England, used to be cut into balls that weighed 30 pounds.
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